케이윌 & 효린 - Whenever You Call [101212 김정은의 초콜릿]
[Special Clip] 효린(Hyolyn)X소유(SoYou) - '꽃이 핀다(GROWING)' Piano Cover
[Special Stage] HyoLyn, K.Will e Simon D - Amazed
[MV Full]K.Will - Amazed (Feat. Simon D, Hyorin) with Lyrics & English Subbed
K.will, Hyo-rin - Have yourself a merry little Christmas, 케이윌, 효린
[MV] 케이윌(K.will) - 이러지마 제발 (Please don't...)
[GDA/Golden Disk Awards] K.will + Hyorin(케이윌 + 효린) - Endless love
K.Will & Hyorin - When I first Saw You (2013.05.04) [Music Bank w/ Eng Lyrics]
【TVPP】K.will & Hyo-rin, 케이윌 & 효린 - Have yourself a merry little Christmas @ Show! Music Core
[HD] 110717 K.Will ft. Hyorin & Simon D - Amazed
[ Mixed ] K.will ft Hyorin & Soyou - 꽃이 핀다 Growing
When I First Saw You - K.Will & Hyorin (Sistar)
K.Will ft. Supreme Team's Simon D _ Sistar's Hyorin - Amazed
K will & Hyorin Sistar) Whenever You Call
[HD] 101212 K.Will & Hyorin (Sistar) - Whenever You Call
Kwill with Hyorin - Whenever you call
[MV] 효린(Hyolyn) X 주영(JooYoung) - 지워(Erase) feat. 아이언(Iron)
K.Will- Amazed Ft. Simon D and Hyorin
20110121 K.Will - Amazed (Feat. Simon D, Hyorin)