Saturday Night Live

An Irishman himself, Mescal was a stand out in this unseen clip cut from December 7's episode.

"It destroyed at a level I've never seen," the Late Night Host said of Betty White's Emmy-winning episode. 

NBC's two-hour special will have you fa-la-la-la laughing with SNL's most memorable Christmas sketches.

From "I Wish It Was Christmas Today" to "A Christmas Carol" with Steve Martin and Martin Short, watch the best SNL Christmas sketches here—including a few you might've never seen. 

Featuring rare behind-the-scenes footage and interviews, all four episodes premiere January 16.

The hilarious sketch from December 2016 is the gift that keeps on giving... or re-gifting, that is.

From Paul Simon to Charli XCX — and five The Voice Coaches! — these talented folks were SNL Host and Musical Guest in the same episode.

The viral sketch debuted when the "Anti-Hero" singer was at the top of her massive 1989 era.

Marcello Hernández and Heidi Gardner stopped by as a young football player and A Mom Whose Son Just Got Famous.

SNL's 50th season welcomes ultra-talented artists and bands to the Studio 8H stage, from Jelly Roll to Chappell Roan and Stevie Nicks.