Jimmy Fallon v. Jennifer Lopez — Whose Pants Are Tighter?

Jimmy Fallon squeezed into his tight, white pants for a stellar song and dance, and Jennifer Lopez joined him. The two tried to take each other down, with revolving turns as to who deserves the tightest-white-pants prize, and JLO treated the audience to a dose of her derriere. Watch below to get a good look at my girl crush in action.