Will Ferrell and Jimmy Fallon Fight Over Tight Pants, Jimmy Fallon, trousers, Will Ferrell, Tensions are high when Will Ferrell and Jimmy quarrel over whose pants are tighter. #FallonFlashback

Tensions are high when Will Ferrell and Jimmy quarrel over whose pants are tighter. #FallonFlashback

WATCH: Will Ferrell and Christina Aguilera take on Jimmy Fallon in “Tight Pants”

Will Ferrell and Jimmy Fallon Fight Over Tight Pants, Jimmy Fallon, trousers, Will Ferrell, Tensions are high when Will Ferrell and Jimmy quarrel over whose pants are tighter. #FallonFlashback

Tight Pants with Will Ferrell, Jennifer Lopez and Christina Aguilera

Tensions are high when #WillFerrell and Jimmy quarrel over whose pants are tighter. #shorts

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

Tight Pants w/ Will Ferrell 😬, Will Ferrell, trousers, Tight Pants w/ Will Ferrell 😬 #FallonFlashback Original Air Date: 05/10/2012 (Late Night with Jimmy Fallon)

Will Ferrell and Jimmy Fallon Fight Over Tight Pants, Jimmy Fallon, trousers, Will Ferrell, Tensions are high when Will Ferrell and Jimmy quarrel over whose pants are tighter. #FallonFlashback

Tight Pants w/ Will Ferrell 😬, Will Ferrell, trousers, Tight Pants w/ Will Ferrell 😬 #FallonFlashback Original Air Date: 05/10/2012 (Late Night with Jimmy Fallon)

Tight Pants with Jimmy Fallon, Will Ferrell & Christina Aguilera

Matthew McConaughey looked ridiculous in 'tight pants' sketch with Jimmy Fallon