| Titre | Artiste |
|---|
| - O | LOVE PSYCHEDELICO |
| - Ô Cửa Sổ | My Tam |
| - O Holy Night | The Eccentric Opera |
| - O'kay | Emi Hinouchi |
| - O-oyu Wo Hito Wakashi Shiyou | Daisuke Namikawa |
| - O-Yasumi Boku no Pikachu | Rica Matsumoto |
| - O.F.T | Ling Tosite Sigure |
| - O.K (Jun Be O.K) | T-MAX |
| - O.L. | T.M. Revolution |
| - O.mo.hi.de | ZARD |
| - O.R.T | Akira Yamaoka |
| - O2 | ORANGE RANGE |
| - Oar | Rurutia |
| - OAR | SOPHIA |
| - OASHISU | Bird |
| - Oasis | Bahashishi |
| - Oasis | BEAST |
| - Oasis | Do As Infinity |
| - Oasis | Dong Bang Shin Ki |
| - Oasis | GACKT |
| - Oasis | HYDE |
| - Oasis | Janne da Arc |
| - Oath | LICKER |
| - OATH IN THE STORM | Kimeru |
| - Oatsuraemuki no Destiny | W (Double You) |
| - Obaa-chan | KOKIA |
| - Objexxx | La:Sadie's |
| - Oblaat | hide |
| - Oblivious | KALAFINA |
| - Oblivious ~Kao No Nai Tenshi~ | GACKT |
| - Obneun Beonho | BIG BANG |
| - OBOETERU | HOME MADE KAZOKU |
| - Oboetete Ii Yo | Kotoko |
| - Oboreru Sakana | deadman |
| - Oboreru Sakana | MUCC |
| - Oboreru Sakana | Sadie |
| - Oboreta Machi | AQUARIUS |
| - Oboro | BLOOD |
| - Oboro No Tsuki | D'espairsRay |
| - Oboroguruma | Onmyo-za |
| - Oborozuki | Jinkaku Radio |
| - Oborozuki | Megamasso |
| - Oborozukiyo - Inori | Mika Nakashima |
| - Obscenity | Inoran |
| - Obscure | Dir en grey |
| - Obsess | SS501 |
| - Obsessed | BoA |
| - Obsession | Moon Hee Jun |
| - Obsession | See-Saw |
| - Obstacle Progress | Sadie |
| - obvious ballade | Sadie |
| - Occult Proposal | Vidoll |
| - Occupied | Seraphim |
| - Ocean | 12012 |
| - OCEAN | B'z |
| - Oceanside Liner | Paris Match |
| - Ochiba shigure | Kiyoshi Hikawa |
| - Ochiba to kimi to boku to | kagerou |
| - Ochiwa | Nightmare |
| - Odaji ni | Shiina Ringo |
| - Odayakana Shizukesa ~Jyoka | KOKIA |
| - Ode To Joy | toddle |
| - Odokumi Lady | ALI PROJECT |
| - Odore | Micro |
| - Odore! Morning Curry | Morning Musume. |
| - Odore! Soran Parapara | Soran Happys To Neko Hiroshi |
| - Odoro Yo | Tamaki Hiroshi |
| - Odoru marchen Tokei | An Cafe |
| - Odoru nou | monobright |
| - Off The Edge | Def Tech |
| - Ofuzake KISS | Maki Goto |
| - OGRE | the GazettE |
| - Oh ! Can Not Angel | JUDY AND MARY |
| - Oh ! Sugar Baby | ZARD |
| - Oh ! Tomodachi | Koharu Kusumi |
| - Oh Boy | Heartsdales |
| - Oh enka | Junko Takeuchi |
| - Oh girl | B'z |
| - Oh happy day | Beni |
| - Oh Holy Night (Feat. BoA) | Dong Bang Shin Ki |
| - Oh ma baby | BIG BANG |
| - OH MY BABY | BIG BANG |
| - oh my darlin' | Nakanomori BAND |
| - OH MY FRIEND | BIG BANG |
| - Oh My God | YUI |
| - Oh My Honey | ORESKABAND |
| - OH MY JULIET! | Fujii Fumiya |
| - OH MY JULIET! | Fujii Takashi |
| - OH MY JULIET. | LM.C |
| - Oh My Lady | FUNKY MONKEY BABYS |
| - Oh My Love | ZARD |
| - OH MY SISTER | SOULHEAD |
| - Oh Neul Man | Younha |
| - Oh no ! | MONORAL |
| - Oh Oh Oh (Feat. Brown Eyed Girls) | Girl Friends |
| - Oh Pretty Woman | Kimura Kaela |
| - Oh yeah | Bi Rain |
| - Oh Yeah | MBLAQ |
| - Oh Yeah | ORANGE RANGE |
| - OH YEAH | YUI |
| - Oh Yeah | ZEEBRA |
| - Oh Yeah! | Arashi |
| - Oh! Enka | Kanjani8 |
| - Oh! Heaven | TOKIO |
| - Oh! My Girl, Oh! My God | T.M. Revolution |
| - Oh! Yeah! | Kazumasa Oda |
| - Oh, Ah, Oh | BIG BANG |
| - Oh-E-Oh ! taiyou no Salsa ! (Medley latin 2005) | KAT-TUN |
| - Oh...what A Night | Asuka |
| - Ohanami shite~na | D-51 |
| - Ohayo | Morning Musume. |
| - Ohayou | Keno |
| - Ohayou | Yui Horie |
| - Ohh! Paradise Taste!! | Aiuchi Rina |
| - Ohimesama no Akai Bara | Oyuugi Wagamama Dan X【PaRADEiS】 |
| - Ohiru No Kyuukei Jikan | Berryz Koubou |
| - Ohrinalda | Cherry Filter |
| - Oi Tinh Yeu | China Dolls |
| - oikaze | Jyukai |
| - Oishii Recipe | Perfume |
| - Oishii Tomato no uta | Daisuke Namikawa |
| - Ojet-bam Ee-ya-gee | 1TYM |
| - Ojii-chankko Obaa-chankko Hinatabokko | misono |
| - OK | 1TYM |
| - OK | MEG |
| - OK ! | Rica Matsumoto |
| - Ok ! All Right ! Ii Koi Wo Shiyou | Arashi |
| - OK, FURUSUROTTORU | Cool Joke |
| - Okaeri | ayaka |
| - Okaeri | DOUBLE |
| - Okami | Porno Graffitti |
| - Okamoto Asami | Yuya Aoki |
| - Okasan | Inoue Azumi |
| - Okashi Tsukutte Okkasui! | Mini Moni |
| - Okitegami | Maaya Sakamoto |
| - Okitegami | Miki Fujimoto |
| - Okizari Ace | Last alliance |
| - Okizarisu | HIGH and MIGHTY COLOR |
| - Okonomide | Shiina Ringo |
| - Okuri Sobireta Kotoba | Younha |
| - Okuribi | the GazettE |
| - Okuru kotoba | Aya Ueto |
| - Okuru Kotoba | FLOW |
| - Okuru Kotoba | Sendai Kamotsu |
| - OLÁ! VITÓRIA! | DREAMS COME TRUE |
| - Olala | Koharu Kusumi |
| - OLGADIES | BEAT CRUSADERS |
| - Olive | Paris Match |
| - Olive | SIVA |
| - Omae Ni Sasageru Minikui Koe | girugamesh |
| - Omae no Namida wo Ore ni Kure | Yuki Maeda |
| - Omae Wa Seigaku No Hashira Ni Nare | Shirota Yuu |
| - Omajinai | mink |
| - Omakase Guardian | Guardians 4 |
| - Omakase Guardian | Shugo Chara Egg! |
| - Omatsuri Sawagi | Tokyo Jihen |
| - omedetou | JUDY AND MARY |
| - Omna Magni | Gabriela Robin |
| - Omna Magni | Yui Makino |
| - Omocha | An Cafe |
| - Omocha geigoto rotary | hurts |
| - Omocha no Miisha | Noir Fleurir |
| - Omocha Shuurisha | Dué le Quartz |
| - Omohide Sunset | Merry |
| - Omoi | HAYASHI Asuca |
| - Omoi | ORANGE RANGE |
| - Omoi Ga Kasanaru Sono Mae Ni | Ken Hirai |
| - Omoi no Kakera to Shinjiru Kakera | Asriel |
| - Omoi no Kanata | Haruka Shimotsuki |
| - Omoi no Mama | SHIGI |
| - Omoi no saki ni... | Mai Kuraki |
| - Omoi no Yukue | Nana Mizuki |
| - Omoi wo Kanadete | SAVAGE GENIUS |
| - omoide | Clavier |
| - Omoide | Morning Musume. |
| - Omoide Aruki | Psycho le Cému |
| - Omoide ga Ippai | Chihiro Yonekura |
| - Omoide Ga Ippai | CoCo |
| - Omoide Ga Ippai | DoCo |
| - Omoide ga Naite Iru | Fukuda Saki |
| - Omoide Good Night | Tiaraway |
| - Omoide Hanabi | Hime ichigo |
| - Omoide ni Dekinai | Younha |
| - Omoide ni Dekinakute | Seiko Matsuda |
| - Omoide ninaru mae ni | Lil'B |
| - Omoide no Kakera | Koike Teppei |
| - Omoide no sugu soba de | Kousuke Atari |
| - Omoide no Sukima | Ikimono-gakari |
| - Omoide to Yakusoku | Hirano Aya |
| - Omoikiri Waratte | DEEN |
| - Omoitattara Kichi desse! | Berryz Koubou |
| - Omokage | Megumi Hayashibara |
| - Omokage | Onmyo-za |
| - Omokage no Miyako | Kiyoshi Hikawa |
| - Omou | Kagrra, |
| - On & On | Angela Aki |
| - ON & ON | Dong Bang Shin Ki |
| - On & On | SNoW |
| - On a saturday Night | Son Dambi |
| - On And On | Utada Hikaru |
| - On December 27th | BoA |
| - On My Knees | AJOO |
| - On My Mind | KAT-TUN |
| - On my Own | Hinoi Team |
| - On my way ~reborn~ | angela |
| - On sunday | Arashi |
| - On the right | moumoon |
| - On the road | The Trax |
| - On the run | Aqua Timez |
| - On The Run | HOME MADE KAZOKU |
| - ON THE SPEEEEEDWAY | m.o.v.e |
| - On the way to Eternity | Saeko (J-Rock) |
| - On the wind (solo chinen) | Hey! Say! JUMP |
| - ON TOP OF THE WORLD | Miho Fukuhara |
| - On Your Mark | Chage & Aska |
| - On Your Mind ~Please come back to me~ | KAT-TUN |
| - on&on (english version) | SNoW |
| - Onaji DOA wo kuguretara | BUMP OF CHICKEN |
| - Onaji mado kara miteta sora | Kobukuro |
| - Onaji Sekai de | Hayami Kishimoto |
| - Onaji Sora Mitsumeteru Anata ni ( feat Azu ) | Spontania |
| - Onaji sora no shita de | Kotoko |
| - Onaji Yoru | Shiina Ringo |
| - Once & Forever | GRANRODEO |
| - ONCE AGAIN | 12012 |
| - Once Again | Arashi |
| - Once Again | Koda Kumi |
| - Once Again | Supernova |
| - once in a life time (english version) | Shinhwa |
| - Once in a Lifetime | AI |
| - Once in a lifetime | Shinhwa |
| - Once You Meet Her | Nobuo Uematsu |
| - Ondo | Lee Seung Gi |
| - ONE | Ami Suzuki |
| - ONE | Ayuse Kozue |
| - One | COLOR |
| - ONE | Crystal Kay |
| - One | Dong Bang Shin Ki |
| - One | Epik High |
| - One | FUNKY MONKEY BABYS |
| - One | Kanjani8 |
| - One | Koda Kumi |
| - One | Lead |
| - One | Lee Soo Young |
| - ONE | Shibutani Subaru |
| - One | Tanaka Roma |
| - One | The Alfee |
| - One (ver. japonaise) | Dong Bang Shin Ki |
| - One And Only | THE KIDDIE |
| - One By One | Bae Seul Gi |
| - one by one | Metis |
| - one day | Ken Hirai |
| - one day | Psycho le Cému |
| - ONE DAY | THE LOOSE DOGS |
| - One Day (하루만) | SS501 |
| - One Day (feat. B-Bandj) | YOSHIKA |
| - One day, One dream | Tackey & Tsubasa |
| - One Drop | KAT-TUN |
| - one flesh | Do As Infinity |
| - One for da soul | Lead |
| - One For Me | Mai Kuraki |
| - One for me | SHINee |
| - One Hot Second | Last alliance |
| - One Last Cry | K |
| - One last cry | se7en |
| - One Last Cry ( Micky solo) | Dong Bang Shin Ki |
| - One Last Time | Bonnie Pink |
| - One Life | Mai Kuraki |
| - One Life | the pillows |
| - One Love | Arashi |
| - One Love | EXILE |
| - ONE LOVE | HΛL |
| - One love | Loveholics |
| - One Love | MC the Max |
| - One Love | Super Junior |
| - ONE LOVE | The 5,6,7,8's |
| - One Love | Toshi |
| - one love Feat. VERBAL | Ryohei |
| - One love story | CHERRYBLOSSOM |
| - ONE MAN BAND | Inoue Joe |
| - One Melody | Angela Aki |
| - One More chance | Ami Koshimizu |
| - One More Chance | Nakama Yukie |
| - One More Time | Harisu |
| - One more time | Jewelry |
| - One More Time | se7en |
| - ONE MORE TIME | SOULHEAD |
| - One More Time OK ? | Tenjochiki |
| - One more time, One more chance | Yamazaki Masayoshi |
| - One night animal | AAA |
| - ONE NIGHT BALLET | BUCK-TICK |
| - One night carnival | Kishidan |
| - One Night Magic feat.Yamada Masashi | Utada Hikaru |
| - One night romance | Koda Kumi |
| - One night star | The Arrows |
| - One on one | B'z |
| - One on one | KAT-TUN |
| - One or Eight | Do As Infinity |
| - One piece of door | Faith |
| - One Room Disco | Perfume |
| - One Star | PENICILLIN |
| - One Star | Yosuke Ito |
| - One Step | Ivy |
| - One Step | Lee Jin Sung |
| - One Step Behind The Door | Akeboshi |
| - One Suitcase | mink |
| - One summer night | Jewelry |
| - One Summer Night (Feat.Drunken Tiger) | T / Tasha |
| - One Summer Time | BRIGHT |
| - One Survive | Mika Nakashima |
| - one tear ago | Shanadoo |
| - One Thing | SAWA [J-Rock] |
| - One Time | Harisu |
| - ONE TO TEN | Ivy |
| - One To Ten | se7en |
| - One two diving | Nakanomori BAND |
| - One Two Step | TaeGoon |
| - One Two Three | Mr. Children |
| - One two three n' four | Lee Hyori |
| - One Way | BoA |
| - One Way | KICK THE CAN CREW |
| - one way | SID |
| - ONE WAY | Thelma Aoyama |
| - ONE WAY LOVE | An Cafe |
| - one way ticket | Nakanomori BAND |
| - One Winged Angel | Nobuo Uematsu |
| - One Winged Angel | The Black Mages |
| - One Wings -Embracing Each Other- | BoA |
| - one word | Lee Jun Ki |
| - One World One Dream | Wang Lee Hom |
| - One Year Later | Jessica [Girls' Generation] |
| - One Year Later ( Feat Onew - SHINee ) | So Nyeo Shi Dae |
| - One's Shadow | Murakami Shingo |
| - One-Winged Angel | Nobuo Uematsu |
| - oneday | euphoria |
| - Onegai | Angela Aki |
| - Onegai | HAYASHI Asuca |
| - Onegai ! senorita | ORANGE RANGE |
| - Onegai Miwaku no Target | Melon Kinenbi |
| - Ones Life | Panic Channel |
| - Oneul Gateun Bamimyeon | Shinhwa |
| - Oneureun | Lee Jung Hyun |
| - One×Time | Ai Otsuka |
| - Ongaku | KALAFINA |
| - Ongaku | Maaya Sakamoto |
| - Oni | Onmyo-za |
| - Oni Hitokuchi | Onmyo-za |
| - Oni Koroshi | Onmyo-za |
| - Oni no Men | the GazettE |
| - Oni o Awaremu Uta | Kagrra, |
| - Oni to sakura | PIERROT |
| - Onibi | Inugami Circus-dan |
| - Onigishi | Kanjani8 |
| - Onigishi | Sankyoudai |
| - Onikiri Ninpocho | Onmyo-za |
| - Oningyousan | Jinkaku Radio |
| - Onjebutho | Lee Jung Hyun |
| - Onjenga | Lee Jung Hyun |
| - Online games | Huang Yi Da |
| - Only Because of You | Angela Zhang |
| - Only for love | Make-Up |
| - Only have feelings for you | Fahrenheit |
| - Only Holy Story | Steady&Co. |
| - Only Human | K |
| - Only If | LISA |
| - Only Lonely | S.H.E |
| - only lonely glory | BUMP OF CHICKEN |
| - Only Look At Me (Taeyang Solo Live Ver.) | BIG BANG |
| - Only Look At Me Part.2 | G-DRAGON |
| - Only Love | Arashi |
| - Only Love | SM Town |
| - Only me Only me | Paran |
| - only my love | Seiko Matsuda |
| - Only my Railgun | fripSide |
| - Only one | Lee Hyori |
| - Only One | Nicholas Teo |
| - Only One Person | F.T Island |
| - Only the love survive | ACCESS |
| - Only today | AKB48 |
| - Only want you | Anna Tsuchiya |
| - Only Way | X JAPAN |
| - Only You | 2PM |
| - Only You | Bi Rain |
| - Only You | Fahrenheit |
| - Only You | Kim Jong Wook |
| - Only You | Super Junior M |
| - Only You (Fei Ni Mo Shu) | Tank |
| - ONLY YOU - Zoku v-u-den | Hello! Project |
| - Only you can hurt me | Lead |
| - Onmyoji | Onmyo-za |
| - Onna de Itai | ZARD |
| - Onna kanashii otona | Sexy Otonajan |
| - Onna Negai Uta | Meiko Kaji |
| - Onna ni Sachi Are | Morning Musume. |
| - Onna no Jyumon | Meiko Kaji |
| - Onna no Ko no Tori Shirabe TAIMU | Country Musume. |
| - Onna no ko otoko no ko | Yuko Ogura |
| - Onna No Ko Te | Mitsuko Horie |
| - Onna no Ultra | Gyaruru |
| - Onna Tomodachi | Rythem |
| - Onna Zakari | Melon Kinenbi |
| - onpu no tegami | miyavi |
| - ONRI RONRII GUROORII | BUMP OF CHICKEN |
| - Onset of Tragedy | ChthoniC |
| - Onsoku Punch | Cocco |
| - Onu Jejuba | Lee Hyori |
| - Onur Tara | Lee Hyori |
| - Oo Suh Bohn Dah | BIG BANG |
| - OO-Joshi Kou Ki no Shuchou | Aya Matsuura |
| - Oogesani aishiteru | Angela Aki |
| - OOGOE DIAMOND | AKB48 |
| - ooh | AI |
| - Ooh child | YOSHIKA |
| - Ooh La-La! | So Nyeo Shi Dae |
| - Ooh Yeah | Machine |
| - Ooh... Baby | Miliyah Kato |
| - Ooki na Mizutamari | snowkel |
| - Ookiku Na~re Boku | Chinen Yuri |
| - Ookina ai de motenashite | C-ute |
| - Ookina Furu Dokei | Ken Hirai |
| - Ookina Furudokei | Ken Hirai |
| - Oolgoshipeo Uneun Sarami Ittgesseo (Ft. Dynamic Duo) | 8eight |
| - Ooljimayo | Younha |
| - Oooh! Ie~! | HOME MADE KAZOKU |
| - Ooori Dool | KARA |
| - Oopsy | Shim Eun Jin |
| - Oorin Ahjik Saranghago Ittah / Yet | Lee Jung Hyun |
| - OORORA no Sora kara Mitsumete iru | Chitose Hajime |
| - Open | Kaori Utatsuki |
| - Open M.I.C [EN DUO AVEC EUN JIWON, TBNY, TWEAK ET DYNAMIC DUO | Epik High |
| - open wide | globe |
| - Open Your Eyes | Chihiro Yonekura |
| - Open Your Eyes | NEWS |
| - OPEN YOUR EYEZ | GARI |
| - OPEN YOUR HEART | Hayami Kishimoto |
| - Open your heart | See-Saw |
| - Open your heart | Yuki Kajiura |
| - Open your mind | Yoko Ishida |
| - opening | BUMP OF CHICKEN |
| - opening | Utada Hikaru |
| - Opera Fantasia | Momoi Halko |
| - Opera za no Higeki | Madeth gray'll |
| - Operation Overload 7 | m.o.v.e |
| - OPERATION OVERLOAD 7 - A Rule Between You & Me | Yuri (Move) |
| - Operation Tiger | Sex Machineguns |
| - OPERA~za no Kaijin | Velvet Eden |
| - Ophelia | Kaya |
| - Ophelia | L'Arc~en~Ciel |
| - Ophelia Ibun | ALI PROJECT |
| - Oppa ! Na haedodwae ? | E.Via |
| - Oppa Nappa | So Nyeo Shi Dae |
| - Opus | Rurutia |
| - Oputi | jealkb |
| - Orabinahai | Onmyo-za |
| - Orange | as.milk |
| - ORANGE | BRIGHT |
| - Orange | Eri Kitamura |
| - orange | KAT-TUN |
| - Orange | Lil'B |
| - Orange | Rie Kugimiya |
| - Orange | Ryuichi Kawamura |
| - Orange | SAVAGE GENIUS |
| - Orange | Seo Taiji |
| - Orange | Yui Aragaki |
| - Orange | Yui Horie |
| - Orange Drama | heidi. |
| - ORANGE DREAM | An Cafe |
| - ORANGE feat.MCU | 175R |
| - Orange Gradation | Imitation PoPs uchuu sentai NOIZ |
| - Orange iro no kokoro | Mi |
| - Orange Iro to Yubikiri | Maaya Sakamoto |
| - Orange no Hatsukoi | Younha |
| - Orange No Taiyou | HYDE |
| - Orange No Yuuhi | ZONE |
| - Orange Parade | Ichigo69. |
| - Orange Sunset | Halcali |
| - Orange sunshine | IZAWA Asami |
| - Orange sunshine (thirsty remix English ver.) | IZAWA Asami |
| - Orange Tegami | Soroban |
| - ORANGE★NIGHT | Aiuchi Rina |
| - Orchestral Fantasia | Nana Mizuki |
| - Order Made | Radwimps |
| - Ordinary | NEWS |
| - ORDINARY JOE | Nujabes |
| - Ore Dake no Musu | ON/OFF |
| - Ore Ga Yaranakya Dare Ga Yaru | Kageyama Hironobu |
| - Ore ha Tokoton Tomaranai! | Kageyama Hironobu |
| - Ore no shita de AGAKE | Hikaru Midorikawa |
| - Ore Ore Rap | FUNKY MONKEY BABYS |
| - Ore Pose ~Ore nari no Love Song~ | PENGIN |
| - Ore to omae no atarashii kisetsu | B'z |
| - ore tomo | D-51 |
| - Ore,Tenshi | Porno Graffitti |
| - Ore-tachi no Enajii | Kageyama Hironobu |
| - Orenji | Bonnie Pink |
| - Orenji | Plastic Tree |
| - Orenji Cheossarang | Younha |
| - orenji no taiyou | GACKT |
| - Oresama Shikou | miyavi |
| - Oreshiki Continue | SuG |
| - Oretachi Dake No Fighting Song | miyavi |
| - Oretachi Ni Asu wa Aru | SMAP |
| - Oretachi no seishun | Hey! Say! JUMP |
| - Oretachi no Seishun | Takaki Yuya |
| - organum | Silver Ash |
| - Organzola | Schwein |
| - Orgasm | X JAPAN |
| - Ori No Naka De Miru Yume | D'espairsRay |
| - Oriental Lily | Sel'm |
| - Oriental Love Story | BUCK-TICK |
| - Original Blue | KAT-TUN |
| - Original Color | Domoto Tsuyoshi |
| - Orihime | Vidoll |
| - Orinnare Giog | SS501 |
| - orion | 12012 |
| - Orion | GIRL NEXT DOOR |
| - Orion | Mika Nakashima |
| - Orion | SID |
| - Orion Once Again | DELUHI |
| - Orleans no Shoujo | exist†trace |
| - Orugooru | MUCC |
| - Orum | Lee Hyori |
| - Orusuban | BUMP OF CHICKEN |
| - osaga | BENNIE K |
| - Osaka Fever | Puppypet |
| - osaka koi no uta | Morning Musume. |
| - Osaka no Onna | Hitomi Shimatani |
| - Osaka Obaachan Rock | Kanjani8 |
| - Osaka Rainy Blues | Kanjani8 |
| - Osaka Rainy Blues (ver. 2) | Kanjani8 |
| - Osaka Rhapsody | W (Double You) |
| - Osaka Romanesque | Kanjani8 |
| - Osananajimi | Miki Fujimoto |
| - OSCA | Tokyo Jihen |
| - Oshaberi Suki ya nen | Mini Moni |
| - Oshakashama | Radwimps |
| - Oshare Banchou feat. Soy Sauce | ORANGE RANGE |
| - Oshibe Meshibe to Yoru no Chouchou | AKB48 |
| - OSIRIS Houtei | ANUBIS |
| - Osoreirimasu, Sumimasen | Hiroki Takahashi |
| - Ossan ossan ore nanbo | miyavi |
| - Osu | ENDLICHERI☆ENDLICHERI |
| - Otegami | Shulla |
| - Otegami | SID |
| - Otherworld | Nobuo Uematsu |
| - Otherworld | The Black Mages |
| - Oto no Ha | UVERworld |
| - Oto no Nai Mori | Porno Graffitti |
| - Oto no nai sekai | Last alliance |
| - Otogi | Radwimps |
| - Otogi ichiya | ClearVeil |
| - Otogibanashi | ENDLICHERI☆ENDLICHERI |
| - Otogino kuni no kimi | Chatmonchy |
| - Otoko no Ko | Berryz Koubou |
| - Otoko no Kunshô | Daisuke Shima |
| - Otoko No Roman Z | PENICILLIN |
| - Otoko Tomodachi | Morning Musume. |
| - Otokotachi no Banka | Sendai Kamotsu |
| - Otome COCORO | C-ute |
| - Otome Gokoro | Angela Aki |
| - Otome Keitai Denwa no Himitsu | W (Double You) |
| - Otome no Inori | ALI PROJECT |
| - Otome no Inori | Mano Erina |
| - Otome no inori | Megumi Hayashibara |
| - Otome no Otoshimono | Harenchi Punch |
| - Otome no Policy | Yoko Ishida |
| - Otome no Shinrigaku | Morning Musume. |
| - Otome Pasta ni Kandou | Tanpopo |
| - Otome wa DO MY BEST desho ? | Ami Koshimizu |
| - Otome wa DO MY BEST deshou ? | Mika Kikuchi |
| - Otome wa Kyuu ni Tomarenai | Chiba Chiemi |
| - Otomegokoro Hey Hey Hey | Stereo Pony |
| - Otona no Kusuri | GO!GO!7188 |
| - otonashi | WaT |
| - Otoshimono | Uura Saeka |
| - Otsukare SUMMER | Halcali |
| - Ouch!! | Porno Graffitti |
| - Ouchi ga Ichiban | Satomi Koorogi |
| - Ouen suru kara | Tommy Angels |
| - Ougon no Tsuki | Suga Shikao |
| - Ougon Soul | Shonannokaze |
| - Oujisama to Yuki no Yoru | Tanpopo |
| - Ouka | Kaya |
| - Ouka no Kotowari | Onmyo-za |
| - Ouka Ranbu | Missalina Rei |
| - Ouka Ranman | Kagrra, |
| - Ouka Saki Some ni Keri | D |
| - Oukoku Kingdom Come -moon rise- | BUCK-TICK |
| - Oukoku Saiban | Lolita23q |
| - Our "World" | Daisuke Namikawa |
| - Our Days | Ami Suzuki |
| - Our Generation | Tokito Ami |
| - Our Love | Super Junior |
| - Our Love - to my parents- | BoA |
| - Our Relation | Eriko Imai |
| - Our Rock Star | THYME |
| - our song | Abe Asami |
| - Our Song | Chihiro Onitsuka |
| - Our song | FREENOTE |
| - Our Sound | Aiuchi Rina |
| - Our Story | Angela Aki |
| - Our Story | KAT-TUN |
| - OURANOS | Imitation PoPs uchuu sentai NOIZ |
| - ourselves | Ayumi Hamasaki |
| - Out of my control | Kazuyuki Matsumoto |
| - Out of Orbit ~triple zero~ | T.M. Revolution |
| - Out of Sight, Out of Mind | Dana |
| - Out of the Air | PRIDE OF MIND |
| - Out Of © Control | globe |
| - Out/Definition | THE MAD CAPSULE MARKETS |
| - OUTGROW ~Ready butterfly~ | BoA |
| - Outro | Lexy |
| - Outside Castle | H.O.T |
| - Outsider | DuelJewel |
| - OUTSIDER | Lecca |
| - Outsider | NightingeiL |
| - Outsider | Panic Channel |
| - Outstanding / Yi Zhi Du Xiu | Show Luo |
| - Ouverture de la Soirée | Lacroix Despheres |
| - over | 12012 |
| - OVER | ACIDMAN |
| - Over | Ayumi Hamasaki |
| - Over | Chieco Kawabe |
| - OVER | ClearVeil |
| - OVER | HIGH and MIGHTY COLOR |
| - Over | JULIADOLL |
| - Over | Mr. Children |
| - Over | Nightmare |
| - Over | school food punishment |
| - Over | Super Junior |
| - Over | V6 |
| - over | xTRiPx |
| - Over (Korean Version) | Eddie |
| - Over across the time | BoA |
| - Over Again | -OZ- |
| - over blow | GARNET CROW |
| - over drive | JUDY AND MARY |
| - Over Drive | mihimaru GT |
| - Over Load | Mika Nakashima |
| - Over Mountains and Oceans | Jay Chou |
| - OVER NIGHT | AYA |
| - Over Rainbow Tour | Miyuu Sawai |
| - Over Shine | Aiuchi Rina |
| - Over Soul | Megumi Hayashibara |
| - Over the distance | Hitomi Yaida |
| - Over the Fantasy | Kana Ueda |
| - Over the Limits | angela |
| - OVER THE RAIBOW | Buono! |
| - Over The Rain (hikari no hashi) | flumpool |
| - Over the rainbow | Akane Nakajima |
| - Over the rainbow | Angela Zhang |
| - Over the rainbow | Crystal Kay |
| - Over The Rainbow | Mai Kuraki |
| - Over the rainbow | The Trax |
| - Over the rainbow (rock version) | The Trax |
| - Over the river | Suneohair |
| - over the sky | hitomi |
| - Over the Sky | Hitomi KUROISHI |
| - Over The Stoic | UVERworld |
| - OVER YOU | Miki Furukawa |
| - Over... | Isola |
| - Over... | K |
| - Overdose | bis |
| - Overdrive | m.o.v.e |
| - Overlap | Kimeru |
| - Overnight Sensation ~Jidai wa Anata Ni Yudane Teru~ | TRF |
| - Overture | Arashi |
| - Owakare ni Mukete | Suga Shikao |
| - Owakare no uta | SID |
| - Owaranai Ame | Rokugen Alice |
| - Owaranai kizuna | Hikaru Midorikawa |
| - owaranai uta | PARAN MAUM |
| - Owaranai Yoru to Yume | Biyûden |
| - Owaranaide | Tegomass |
| - Owari Nai Yume | Nanase Aikawa |
| - Owari naki BGM | Chatmonchy |
| - Owari naki kono uta | Galneryus |
| - Owari naki STAGE | Shirota Yuu |
| - Owari No Nai Michi | YeLLOW Generation |
| - Owari to mirai | girugamesh |
| - Owarinaki Tabi | Mr. Children |
| - Owarinaki Yami Yo | meth. |
| - Owl's Tear | Inoran |
| - Oxalis (Movie Version) | HIGH and MIGHTY COLOR |
| - Oyabukou doori ha kyou mo ame | R-15 |
| - Oyashirazu -Summer Again- | MONGOL800 |
| - Oyasumi | Ellegarden |
| - Oyasumi | Momoi Halko |
| - Oyasumi | Morning Musume. |
| - Oyasumi Nasai | cali gari |
| - Oyasuminasai | aiko |
| - Oyoge! Taiyaki-kun | MUCC |
| - Oz | MUCC |
| - Ozone | Shimamiya Eiko |
| - Ozone In The Native | ACCESS |
| - O~i nakamura kun | Kiyoshi Hikawa |
