- Old School Jazz GuitarMusic Themes (音乐主题)
- Ougon Ryuou (Dragon King) (You In Eden Version)高見沢俊彦 (高见泽俊彦)
- ガン×ソード O.S.T EXTRA EDITION中川幸太郎
- OrganixThe Roots
- Once Upon a Christmas Song (In the Style of Geraldine Mcqueen) [Karaoke Version]Backtrack Professionals
- Ohh ShhhChris Lake
- 출생의 비밀 OST Part.2(The Secret of Birth (SBS TV DRAMA) OST Part.2)신지훈 (申智熏)
- Opinion Publique / Ouragan (All Tracks Remastered)Edith Piaf (伊迪丝·琵雅芙)
- 퍼퓸 OST Part.9 (香水 OST Part.9)신지훈 (申智熏)
- 조립식 가족 OST Part.3 (重组家庭 OST Part.3)신지훈 (申智熏)
- 아직 최선을 다하지 않았을 뿐 OST Part.6 (尚未竭尽全力而已 OST Part.6)신지훈 (申智熏)
- 하이에나 OST Part.7 (富豪辩护人 OST Part.7)신지훈 (申智熏)
- O Aggelos Mou, O Diavolos Mou (Prod. By OXFLOYD) (Version II)Christos Dantis (克里斯托·单迪思)
- 신세계 O.S.T (新世界 O.S.T)조영욱 (曹英沃)
- 올드보이 O.S.T (老男孩 O.S.T)조영욱 (曹英沃)
- 발레교습소 OST (芭蕾培训班)조영욱 (曹英沃)
- 박쥐 OST (蝙蝠 OST)조영욱 (曹英沃)
- 의뢰인 OST (Original Motion Picture Soundtrack)조영욱 (曹英沃)
- 청설 (Original Motion Picture Soundtrack) (Hear Me: Our Summer)조영욱 (曹英沃)
- One Nation (feat. Carlinhos Brown)Sergio Mendes (赛吉欧·曼德斯)
- 하얼빈 OST (Harbin (Original Soundtrack)) (哈尔滨 原声带)조영욱 (曹英沃)
- 혈의 누 (Original Movie Soundtrack)조영욱 (曹英沃)
- 증인 OST (证人 OST)조영욱 (曹英沃)
- One girl加藤英美里 (Emiri Kato)
- Ole Ala LeePeggy Lee (佩吉·李)
- Oldboy (Original Motion Picture Soundtrack)조영욱 (曹英沃)
- Oldboy (Original Soundtrack Album)조영욱 (曹英沃)
- Orange Drive방용국 (方容国)
- One DayPeggy Lee (佩吉·李)
- ONLY YOUJASMINE (じゃすみん)
- ONE OUTS -ワンナウツ- オリジナル・サウンドトラック (超智游戏 鬼影投手)松本晃彦 (Akihiko Matsumoto)
- ONEJASMINE (じゃすみん)
- Ordinary Song (Radio Mix)The Ones (那些)
- Old Classics Forever (Special Original Recording)Peggy Lee (佩吉·李)
- Oba-Là-LàSergio Mendes (赛吉欧·曼德斯)
- OceanoSergio Mendes (赛吉欧·曼德斯)
- On My Mind邹文正
- One Outs松本晃彦 (Akihiko Matsumoto)
- Olé Ala Lee! (HQ Remastered Version)Peggy Lee (佩吉·李)
- 너 미워! 줄리엣 OST Part.1 (讨厌你!朱丽叶 OST Part.1)Apink BnN
- 최고의 이혼 OST Part.5 (最完美的离婚 OST Part.5)Apink BnN
- On A Random Tuesday : Live At The Blue NoteJoshua Redman (乔舒亚·瑞德曼)
- 커피야 부탁해 OST Part.6 (拜托了咖啡 OST Part.6)덕환
- 미워도 사랑해 OST Part.21 (即使恨也爱你 OST Part.21)덕환
- 역류 OST Part 11 (逆流 OST Part.11)덕환
- Oh, Hi! (Original Motion Picture Soundtrack)Steven Price (史蒂芬·派斯)
- Ocean with David Attenborough (Original Motion Picture Soundtrack)Steven Price (史蒂芬·派斯)
- Our Planet (Music from the Netflix Original Series)Steven Price (史蒂芬·派斯)
- One Planet (Episode 1 / Soundtrack From The Netflix Original Series "Our Planet")Steven Price (史蒂芬·派斯)
- Outa My Head - SingleJanine Berenson
- Out Of My HeadJanine Berenson
- Oh LalaJustine Skye
- Our Eternal SkySteven Price (史蒂芬·派斯)
- Oriental Green河井英里
- ONCE UPON A TIME (ワンスアポンアタイム)Noon
- 시티헌터 OST Part.5 (城市猎人 OST Part.5|City Hunter OST Part.5)박규리 (朴奎利)
- Offbeat, Cute & QuirkyVitamin A (维他命A)
- 네일샵 파리스 OST Part.1 (Nail Shop Paris Pt. 1 (Original Soundtrack)) (美甲店Paris OST Part.1)박규리 (朴奎利)
- Oh! CarolNeil Sedaka
- Off World (Explicit)Pax Japonica Groove
