f(x) - Beautiful Stranger (by f(Amber+Luna+Krystal))
에프엑스 f(x) - Goodbye Summer (f(Amber+Luna+Krystal)) (Feat. D.O. of EXO-K)
Luna [F(x)] - 괜찮아 (It`s Okay) Алиса из Чхондама
f(x) - Beautiful Stranger (f(Amber+Luna+Krystal)) (Instrumental)
Luna (f(x)) ft. The TRAX - Bring Me To Life
Krystal & Luna - F(x)에프엑스 - Sorry
f(x)에프엑스 - Beautiful Stranger (f(Amber+Luna+Krystal))
f(x) - You Are My Destiny (Luna+Krystal)
F(x) Krystal & Luna - Hard but easy
f(x) Luna, Krystal - Calling Out
f(x) (Amber, Luna, Krystal) (ft. D.O of EXO-K) - Goodbye Summer
f(x) Luna & Blue Butterfly - 나는나비 (YB cover on Mask King)
Justin Oh feat. f(x) Amber & Luna - We Own The World
Luna [루나 of f(x) ] - 미소를 띄우며 나를 보낸 그 모습처럼 (Don't Cry For Me)
f(x) Luna, Mamamoo Solar, Ailee, A Pink Eunji - I'm Okay (난 괜찮아)
F(x) Krystal & Luna - Hard but easy
President OST: Yesung (Super Junior) & Luna (f(x) - And I Love You
Luna [f(x)] - 괜찮아 (It`s Okay) Cheongdamdong Alice OST Part.2 (Inst.)
Sunny (SNSD) & Luna f(x) - 나야 (It`s Me) [To The Beautiful You OST]
Sunny (SNSD) & Luna (f(x)) - It's Me
Sunny(SNSD) & Luna (f(x)) - “나야” (It’s Me)
Girls' Generation|SNSD|(Sunny & Luna) f(x) - It`s Me (Для тебя во всем цвету)
Kyuhyun (SuJu) & Luna (f(x)) - Shine Your Way
Donghae & Eunhyuk ft. Luna f(x) - Ten years
Onew (SHINee) & Luna (f(x)) - Can I Have This Dance
Luna (f(x)), Choi (LU:KUS) - Healing Love (Kill Me Heal Me OST) Beat
Krystal & Luna F(x) - Hard And Easy
R3hab, Amber & Luna (f(x)), Xavi & Gi - Wave (Xavi & Gi Ver.)
R3hab, Amber & Luna (f(x)), Xavi & Gi - Wave
Amber & Luna f(x) & DJ Xavi & Gi & DJ R3hab - Wave (STATION)
f(x)'s Amber Luna Krystal Feat. D.O. of EXO-K - Goodbye Summer
Sunny [써니] & Luna [루나] (f(x)) - It's Me [나야] (To The Beautiful OST)
f(x) (Krystal & Luna) - Sorry (Dear. Dad)
F(x) Krystal & Luna - Hard but easy (OST Invincible Lee Pyung Kang)
Amber, Luna, Krystal[F(x)] - Beautiful Stranger
f(x) Luna & Blue Butterfly - Butterfly (Mask King)
Amber, Luna, Krystal (f(x)) ft. D.O (EXO) - Goodbye summer
f(x)'s Amber Luna Krystal Feat. D.O. of EXO-K - Goodbye Summer т,п
ZICO (지코 of Block B) Feat. Luna (루나 of f(x) ) - 사랑이었다 (It Was Love)
f(x) Luna & TRAX - Bring Me To Life
f(x) Luna & Blue Butterfly - 나는나비 (A Flying Butterfly) (Mask King)
f(x)'s Amber Luna Krystal Feat. D.O. of EXO-K - Goodbye Summer
f(x) Luna - 미소를 띄우며 나를 보낸 그 모습처럼 (Don't Cry For Me)
Luna (루나 of f(x) ) - Free Somebody
Super Junior - Loving You (Yesung with Luna f(x))
SHINee (샤이니) - Get Down (Minho & Key feat. f(x)’s Luna)
ZICO - 사랑이었다 (Feat. Luna of f(x))
지코 (ZICO) - 사랑이었다 (It Was Love) (Feat. LUNA Of F(x))
Luna (루나 of f(x) ), Solar (솔라 of MAMAMOO), Ailee (에일리), Eunji (은지of APink) - 난 괜찮아
Max (TVXQ), Luna (F(x)), Suho & Xiumin (EXO), Key (SHINee) - One Day One Chance
Max (TVXQ), Luna (F(x)), Suho & Xiumin (EXO), Seulgi (Red Velvet), Key (SHINee) - 소원을 말해봐 (Genie)
Max (TVXQ), Luna (F(x)), Suho & Xiumin (EXO), Key (SHINee) - Sherlock - 셜록 (Clue + Note)
DIVA TOGETHER (A PINK (EunJi) × AILEE × f(x) (LUNA) × MAMAMOO (SOLAR)) - 난 괜찮아 (I WILL SURVIVE)
f(x) (에프엑스) (Amber, Luna, Krystal) Feat. D.O. of EXO-K - 07. Goodbye Summer (Pink Tape, 2013)