In 2001, "Lady Marmalade" brought a ragtag group of pop stars together. But they really dropped the ball by only including one Christina Aguilera. And do we even dare to dream of two Lil' Kims?
Lip Sync Battle looked to correct history's wrongs when the real X-Tina dropped by during Hayden Panettiere's performance of the song. Not since the heyday of '80s hair metal have we seen so many fluffy, peroxide-treated strands bouncing together in synchrony.