Chad Smith of the Red Hot Chili Peppers is going head-to-head with comedian/actor Will FerrellChad Smith and Will Ferrell are finally going to prove who's who.

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The two 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-thousand dollars for the battle to occur, with the money set to go to Cancer for College and Little Kids Rock.  Apparently, 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.
Here is all of the info from the Rolling Stone article: