Jimmy Fallon hosted Saturday Night Live's holiday episode this weekend, so we were bound to get a few more music-related skits than normal. I think it's only fair to say the faux commercial for Christmas Duets with Michael Bublé featured one of the best impersonations of Lady Gaga we've ever seen, while also offering strong contenders for Thom Yorke, Ke$ha, Bieber, M.I.A. and Kanye. Watch it above.
This also happened during the episode, of course. Tracy Morgan's hand dance was the best it ever was.