130726 Boom's Youngstreet Radio - "Rum Pum Pum" + "Shadow" (w/ F(x))

[ENG SUB] 120620 - f(x) SSTP Radio Electric Shock Highlight Medley

Global Request Show : A Song For You 3 - 첫 사랑니 | Rum Pum Pum Pum by f(x)

[HeartfxSubs] 110425 - Super Junior's Kiss The Radio with f(x) (ENG)

에프엑스 f(x) - 첫 사랑니(Rum Pum Pum Pum) [전체] 직캠 Fancam (컬투쇼 공개방송) by Mera

Reason to love f(x) 에프엑스 - Funny & Cute Moments

100611 f(x) NU ABO Narsha's Raise the Volume Radio

K-Pop band F(x) performing Rum Pum Pum Pum at the London Korean Festival 2015 런던 한인 축제 Part 7

F(X) at KCON 2013 Press Conference

f(x) 에프엑스 〈Music Spoiler: PLAY! PINK TAPE〉 with JONGHYUN & KEY of SHINee

Rum Pum Pum Pum (첫사랑니)- f(X)에프엑스 Live @ KBS Radio Hall

[HeartfxSubs] 150212 f(x) Amber - Super Junior's Kiss The Radio (eng)

F(x) 4 walls making video

[FANCAM] 100319 Kryber Chocolate Love & Chu Rehearsal at PIMF

SBS [2013가요대전] - 에프엑스(f(x)) '미행+첫 사랑니'

f(x) | 'LA chA TA', 'Chu~♡', 'NU ABO', 'Danger' MV REACTION | Already can't wait to see more of this

Anna Kendrick goes K-Pop with F(x)

140116 골든디스크(Golden Disk) 에프엑스 / f(x) - 엔딩 직캠 by. 공피디

f(x)_첫 사랑니 (Rum Pum Pum Pum by f(x)@M COUNTDOWN 2013.7.25)

160331 HuaDing Awards 华鼎奖 Fx(amber,Krystal,luna) focus

[FMV] Oh my lady - Encore moments | Kryber f(x)