【TVPP】Hyorin(SISTAR) - Bang Bang (with Ailee, Jessie), 효린(씨스타) - Bang Bang @ 2014 KMF Live
SISTAR(SoYou & HyoLyn) - Hurt(Christina Aguilera) [Yu Huiyeol's Sketchbook]
HYOLYN(효린) 'Wait' Official MV
HYOLYN(효린) '달리 (Dally) (Feat. GRAY)' Official MV
[MV] 효린(Hyolyn) X 주영(JooYoung) - 지워(Erase) feat. 아이언(Iron)
SISTAR19(씨스타19) - Ma Boy Music Video
【TVPP】Hyorin(SISTAR) - Fate, 효린(씨스타) -인연 @ I Am a Singer 3
효린(HYOLYN) - LONELY(론리) Music Video
효린, 다솜 (HYOLYN, DASOM) - 둘 중에 골라 (Summer or Summer) MV
It wasn't Hype Boy, but "Ma Boy" back then! The summer QUEEN HYOLYN's visit on #TheKStarNextDoor
[Dance Practice] 효린(Hyolyn) X 주영(Jooyoung) - 지워(Erase) 주차장 안무영상
【TVPP】Hyorin(SISTAR) - Hello, Goodbye, 효린(씨스타) - 안녕 @ I Am a Singer 3
[M/V] HYOLYN(효린) - SEE SEA(바다보러갈래)
Sistar eating AOA up
Crazy of you (미치게 만들어)
Hyorin (SISTAR) - Crazy Of You (미치게 만들어) FMV (Master's Sun OST) [ENGSUB + Romanization + Hangul]
Good bye (안녕)
I Choose To Love You (널 사랑하겠어)
Hyorin - I choose to love you MV [English subs + Romanization + Hangul] HD
【TVPP】 Hyorin(SISTAR) - SOFA, 효린(씨스타) - 소파 @Duet Song Festival