- 謳う丘～Ar=Ciel Ar=Dor～志方あきこ (志方晶子)
- OUR GAME기현 (基显)
- 별똥별 OST Part.1 (Sh**ting Stars OST Part.1) (流星 OST Part.1)남우현 (南优铉)
- 소방서 옆 경찰서 OST Part.1 (Police Station Next To Fire Station (Original Soundtrack), Pt. 1) (消防局旁警察局OST Part.1)기현 (基显)
- 세기말 풋사과 보습학원 (네이버 웹툰) OST Part.2 (After School Lessons for Unripe Apples [Original Soundtrack] Part.2)기현 (基显)
- 리플레이 OST Part 2 (Replay OST Part 2)기현 (基显)
- 도도솔솔라라솔 OST Part.1 (哆哆嗖嗖啦啦嗖 OST Part.1)기현 (基显)
- One Night Party加藤ミリヤ (加藤米莉亚)
- 어서와 OST Part.7 (快过来 OST Part.7)기현 (基显)
- 뜨거운 안녕 OST Part 1 (Happy Anding, Pt. 1 (Original Soundtrack))기현 (基显)
- Once A DaySonna Rele (索娜·瑞拉)
- One LoveAI (植村爱)
- On the shore of the skyDima Bilan (季马•比兰)
- 마담 앙트완 OST Part.2 (安托万夫人 OST Part.2)지오 (G.O)
- On My Way (Explicit)Bryson Tiller (布莱森·提勒)
- Ona liubila muzykuDima Bilan (季马•比兰)
- O-IWI-O지오 (G.O)
- 내 남자의 여자 (Original Television Soundtrack) (My Husbands Lover)개미 (蚂蚁)
- Open Your Mind feat. Aloe Blacc + CradleAloe Blacc (阿罗·布莱克)
- 공주의 남자 OST Part.2신혜성 (申彗星)
- On the Road (Original Motion Picture Soundtrack)Gustavo Santaolalla
- One Mint JulepRay Charles (雷·查尔斯)
- Out of LoveAloe Blacc (阿罗·布莱克)
- Over the Limit小野大輔 (おの だいすけ)
- Oh Hell NoJedward (杰爱德华)
- One Man Wrecking Machine (Explicit)Guster
- 닥터프리즈너 (Original Television SoundTrack) Pt. 1이노베이터 (InnoVator)
- OutbreakSunstroke Project
- 닥터 프리즈너 OST Part.1 (囚犯医生 OST Part.1)이노베이터 (InnoVator)
- OUT WORKS & COLLABORATION BEST倖田來未 (こうだ くみ)
- Old GoodbyesPajaro Sunrise (帕亚诺日出)
- Overexcited (French Version)Guster
- Oh My (Lost Songs 2006-2016)Pajaro Sunrise (帕亚诺日出)
- Overexcited (Hebrew Version)Guster
- Overexcited (Canadian Version)Guster
- Overexcited (Japanese Version)Guster
- 신사의 품격 OST Part 6 (绅士的品格 OST Part 6)장동건 (张东健)
- 우리들의 천국 OST (我们的天国 OST)장동건 (张东健)
- Overexcited (Extended Version) [Explicit]Guster
- Our Own HouseMisterWives
- OutbreakerHinkik
- One More Day (Stay with Me)Example (艾洛特·格里夫)
- Out Of Your MindMisterWives
- One More Day (Stay with Me) [Remixes]Example (艾洛特·格里夫)
- 오 나의 사랑 (哦 我的爱)소냐 (Sonya)
- 스캔들 OST Part.4소냐 (Sonya)
- 메이퀸 OST Part.1 (五月女王 OST Part.1)소냐 (Sonya)
- 브라보 마이 라이프 OST Part.3 (SBS 토요드라마) (Bravo My Life (Original Soundtrack) Part. 3)소냐 (Sonya)
- One Little MiracleHawk Nelson
- 메이퀸 O.S.T Part.1소냐 (Sonya)
- Oakland 1989Bonnie Raitt (邦妮·瑞特)
- Only PlayingBonnie Raitt (邦妮·瑞特)
- Oh My Gawd!!!...The Flaming Lips (Explicit)The Flaming Lips (烈火红唇)
- 시카고 타자기 OST Part.2 (芝加哥打字机 OST Part.2)백예린 (白艺潾)
- ONE PIECE ワンピースキャラクターソロシングル プレゼント (海贼王第一弹角色曲·托尼托尼乔巴篇)大谷育江 (おおたに いくえ)
- Onstage Digging Club Seoul THEME 01백예린 (白艺潾)
- 블랙머니 (Original Motion Picture Soundtrack)(Black money (Original Motion Picture Soundtrack))치타 (CHEETAH)
- Our love is great백예린 (白艺潾)
- 굿캐스팅 OST Part.1 (好角色 电影原声带 Part.1)치타 (CHEETAH)
- 사랑의 불시착 OST Part 4 (爱的迫降 OST Part 4)백예린 (白艺潾)
