Girls' Generation drop a teaser video for their comeback featuring Yoona, Heize and Jay Park release a new collab, NU'EST W ranks #1 on music charts for "If You"
References:
SNSD 'Holiday In' Teaser Video - https://www.youtube.com/watch?v=eQc9urMe5Ww
Heize & Jay Park collab - https://www.youtube.com/watch?v=QKv2ocGhCpY