Special stage at Music Bank:

슈퍼주니어 + 소녀시대 - 울면 안 돼
슈퍼주니어 + 소녀시대 - Feliz Navidad
원더걸스 - 루덜프 사슴코
SG워너비 + 임정희 - 화이트 크리스마스
빅뱅 - 겨울 이야기
모두 함께 - 창밖을 보라

Super Junior + Girls Generation - Should Not Cry (Santa Claus Is Coming To Town)
Super Junior + Girls Generation - Feliz Navidad
Wonder Girls - Rudolf The Red Nose Reindeer
SG Wannabe + Lim Jeong Hee - White Christmas
Big Bang - Winter Story
All Together - Look Outside The Window

*Could't cut the beggining; the perf. before the medley.
*There are 2 groups I really hate... but did not want to cut the Medley
*Not sure if all the titles in English are okay (less info)