Crystal Kay feat.BoA - Girlfriend (Crystal Kay 10th Anniversary Tour CK10)
Girlfriend
[ENG] Crystal Kay (ft. BoA) - Girlfriend (Live)
Crystal Kay feat. BoA 『Girlfriend - DAGG's Remix』
BoA & Crystal Kay ~ Girlfriend recording
BoA - UNIVERSE feat. Crystal Kay & VERBAL(m-flo) [BoA 20th Anniversary Special Live -The Greatest-]
BoA - UNIVERSE feat.Crystal Kay & VERBAL(m-flo)『Live at Studio Coast』
Girlfriend feat.BoA Crystal Kay 姉妹で歌ってみました
Crystal Kay Can't Be Stopped
Crystal Kay - Boyfriend -part II-
Girlfriend (カラオケ) (原曲歌手:Crystal Kay feat.BoA)
【カラオケ】Girlfriend feat.BoA/Crystal Kay
Crystal Kay feat BoA 「Girlfriend」を荒牧陽子のガイドボーカルで
Girlfriend (Instrumental)
Girlfriend feat.BoA / Crystal kay (cover)
Crystal Kay Girl's Night
Sweet Friends - Crystal Kay
Crystal Kay Feat. BoA- Girlfriend Ringtone + DL Link
Nii singing Crystal Kay and BoA's Girlfriend