Christina Aguilera on Jimmy Fallon

Will Ferrell and Christina Aguilera stopped by The Tonight Show Starring Jimmy Fallon on Monday night, and it was a real treat. The pair put on some wigs and extremely small white jeans and shook what their mamas gave them alongside Fallon for an epic sequel to Jennifer Lopez's original "Tight Pants" video. See them shake their junk and Christina's full interview below.

Christina Aguilera on the Tonight Show (full) from Diego Imperiano on Vimeo.