Listen to The Red Hot Chili Peppers on iHeartRadio

Chad Smith and Will Ferrell are finally going to prove who's who. 

The Red Hot Chili Peppers drummer and Anchorman star have agreed to face off in a drum battle on NBC's "Tonight Show Starring Jimmy Fallon" next Thursday, May 22nd. 

The two similar-looking celebrities raised more than $300,000 for the battle to occur, with the money set to go to Cancer for College and Little Kids Rock. 

Smith and Ferrell have been trading jabs for months after Ferrell claimed he was Smith in a Reddit AMA session. 

But Chad tells Rolling Stone that unless Will has been "practicing or is secretly a crazy, wild drummer," it should be pretty easy to see who the real Chad Smith is once the drumming begins. 

Photo Credit Getty Images