Saturday night's musical guest was also the surprise star of host Will Ferrell's monologue.

Chad Smith threw Studio 8H for a spin when he took the “Saturday Night Live” stage, impersonating this week’s host Will ...

Smith also served as musical guest Paul McCartney's drummer on Season 51 finale ...

Celebrity doppelgängers Will Ferrell and Chad Smith reunite on “Saturday Night Live,” continuing a long-running comedic bit ...

Will Ferrell is live from New York once again, and he pulled a bit of a prank on viewers in his "Saturday Night Live" opening ...

Ferrell joked that the rock star "took the wind" out of his sail after he crashed the "SNL" great's hosting gig.

Hitting his mark to address the enthusiastic audience was not the Elf star, but rather Red Hot Chili Peppers drummer Chad ...

Though Will Ferrell was set to host the 51st 'SNL' season finale, Red Hot Chili Peppers drummer Chad Smith took over the ...

Red Hot Chili Peppers drummer Chad Smith will be behind the kit tonight (May 15) to back Paul McCartney's Saturday Night Live ...

The second song he performed was “Band on the Run,” the title track from his 1973 album. It was his first performance on the ...

The actor was joined by Molly Shannon, his former 'Saturday Night Live' castmate, in a sketch, and a long-running gag with Red Hot Chili Peppers drummer Chad Smith continued.