Jennifer Lopez Performs 'Tight Pants' Song With Jimmy Fallon (Video)

Out promoting her new album "A.K.A.," Jennifer Lopez stopped by "The Tonight Show" and got into a heated sing-off with Jimmy Fallon. The issue? Some very tight white pants.

Tight Pants w/ #WillFerrell 😬 #FallonFlashback Original Air Date

Tight Pants w/ #WillFerrell 😬 #FallonFlashback Original Air Date

Jennifer Lopez & Jimmy Fallon - 'Tight Pants

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Tight Pants w/ #WillFerrell 😬 #FallonFlashback Original Air Date

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