Jimmy officiates Will and Chad's battle for the title of greatest drummer on the Tonight Show that ends in a surprise performance of "Don't Fear the Reaper" ...
Will Ferrell and Chad Smith Drum-Off
Will Ferrell and Chad Smith Talk About Their Rivalry
Will Ferrell on Jimmy Kimmel Live PART 1
David Letterman - Will Ferrell Turns Down Harrison Ford
Will Ferrell on Letterman 08/02/2010 Part 1