케이윌 & 효린 - Whenever You Call [101212 김정은의 초콜릿]
[GDA/Golden Disk Awards] K.will + Hyorin(케이윌 + 효린) - Endless love
[Special Clip] 효린(Hyolyn)X소유(SoYou) - '꽃이 핀다(GROWING)' Piano Cover
K.Will- Amazed Ft. Simon D and Hyorin
K.Will & Hyorin - When I first Saw You (2013.05.04) [Music Bank w/ Eng Lyrics]
[Special Stage] HyoLyn, K.Will e Simon D - Amazed
[MV] 케이윌(K.will) - 이러지마 제발 (Please don't...)
[MV Full]K.Will - Amazed (Feat. Simon D, Hyorin) with Lyrics & English Subbed
K.will & Hyorin (Sistar) - Whenever You Call 101212
[HD] 101212 K.Will & Hyorin (Sistar) - Whenever You Call
K.will, Hyo-rin - Have yourself a merry little Christmas, 케이윌, 효린
151031 the voice 케이윌K.will&효린(sistar)‐Endless Love
2013 Golden disk awards Hyorin&K.will - Endless Love
Kwill with Hyorin - Whenever you call
When I First Saw You - K.Will & Hyorin (Sistar)
K will & Hyorin Sistar) Whenever You Call
[HD] 110717 K.Will ft. Hyorin & Simon D - Amazed
[Vietsub][MSVN] Endless love - Hyorin & K.will (2012 Golden Disk Award)
Hyorin - Let it go Live @ K.will's Young Street