Will Ferrell and Red Hot Chili Peppers drummer Chad Smith drummed off against each other on Thursday's episode of The Tonight Show.

Ferrell and Smith appeared on the show wearing the same outfit:  A leather jacket, KISS t-shirt, jeans, and a backwards Dodgers cap.  During the interview, they pretended to be each other.

Then, the drum-off happened.

Will is drumming for: http://www.cancerforcollege.org/

Chad is drumming for: http://www.littlekidsrock.org/

Ferrell had the best line, "That's cute.  Do you play for the Luke Warm Chili Peppers?"

Then, Smith's friends showed up.