f(x) – 어렵고도 쉬운 f(Luna + Krystal)
Track 03 from Album "천하무적 이평강 OST"
Release Date: 2009.11.18
f(x) – Chu~♡
Track 14 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – 라차타 (LA chA TA)
Track 13 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – Lollipop (Feat. SHINee)
Track 12 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – So Into U
Track 11 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – My Style
Track 10 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – Ending Page
Track 12 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29
f(x) – Stand Up!
Track 09 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – Snapshot
Track 11 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29
f(x) – 아이 (Love)
Track 08 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – 여우 같은 내 친구 (No More)
Track 10 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29
f(x) – 좋아해도 되나요 (…Is It OK?)
Track 05 from Album "파라다이스 목장 OST"
Release Date: 2011.02.09
f(x) – Toy
Track 09 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29
f(x) – Gangsta Boy
Track 07 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – 종이 심장 (Paper Heart)
Track 11 from Album "The 3rd Album 'Red Light'"
Release Date: 2014.07.07
f(x) – Airplane
Track 08 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29
f(x) – Beautiful Goodbye
Track 06 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – Summer Lover
Track 10 from Album "The 3rd Album 'Red Light'"
Release Date: 2014.07.07
f(x) – Goodbye Summer (f(Amber+Luna+Krystal) (Feat. D.O. Of EXO-K)
Track 07 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29
f(x) – Dracula
Track 09 from Album "The 3rd Album 'Red Light'"
Release Date: 2014.07.07
f(x) – Dangerous
Track 05 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – 좋아해도 되나요 (…Is It OK?)
Track 04 from Album "'Hot Summer' f(x) 1st Album Repackage"
Release Date: 2011.06.14
f(x) – Boom Bang Boom
Track 08 from Album "The 3rd Album 'Red Light'"
Release Date: 2014.07.07
f(x) – Step
Track 06 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29
f(x) – 뱉어내 (Spit It Out)
Track 07 from Album "The 3rd Album 'Red Light'"
Release Date: 2014.07.07
f(x) – Lollipop (Feat. SHINee)
Track 10 from Album "'피노키오' f(x) The 1st Album"
Release Date: 2011.04.20
f(x) – So Into U
Track 09 from Album "'피노키오' f(x) The 1st Album"
Release Date: 2011.04.20
f(x) – 시그널 (Signal)
Track 05 from Album "'Pink Tape' f(x) The 2nd Album"
Release Date: 2013.07.29