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

Live from New York, it’s Will Ferrell! On May 16, the actor hosted the Season 51 finale of “Saturday Night Live” alongside ...

"Saturday Night Live" closed out its 51st season on May 16 with Will Ferrell hosting for the sixth time and Paul McCartney as ...

SNL host Will Ferrell and musical guest Paul McCartney play mechanics who take advantage of car owners using made-up terms ...

The actor was joined by Molly Shannon, his former 'Saturday Night Live' castmate, in a sketch, and a long-running gag with ...

Last night (May 16), doppelgänger duo Chad Smith and Will Ferrell reignited their long-running pseudo-rivalry when the Red ...

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 ...

Live from New York, it's the Season 51 finale.

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

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

Livestream the season finale of Saturday Night Live on May 16.