Tight Pants with Will Ferrell, Jennifer Lopez and Christina Aguilera, One town isn't big enough for Jimmy, Will Ferrell, Jennifer Lopez and Christina Aguilera to wear their tight pants. #FallonFlashback

The Tonight Show - The Tonight Show Starring Jimmy Fallon

Tight Pants with Will Ferrell, Jennifer Lopez and Christina

Tight Pants with Jimmy Fallon, Will Ferrell & Christina Aguilera

The Tonight Show Starring Jimmy Fallon

Tight Pants with Will Ferrell, Jennifer Lopez and Christina

Tight Pants with Will Ferrell, Jennifer Lopez and Christina

Jimmy Fallon, Will Ferrell and XTina are bringing back tight pants

Will Ferrell & Jimmy Fallon Squeeze Back Into Their Tight Pants

Wayne Brady is in - The Tonight Show Starring Jimmy Fallon

The Tonight Show Starring Jimmy Fallon - Jimmy runs through his

The Tonight Show - The Tonight Show Starring Jimmy Fallon