Billie Eilish Rocks the 'SNL' Stage for Hosting Debut

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Billie Eilish Hosts SNL
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Billie Eilish just became one of those gems that have had the honor of serving as both musical guest and host of Saturday Night Live all in the same evening. And she did not disappoint. From her hilarious sketches - which quickly turned into a family affair - to her stellar music performance, here's what you need to know.

Billie hit the stage at Studio 8H on Saturday, December 11, for her SNL hosting debut. The night obviously started with her opening monologue, where the singer rocked a Christmas-themed dress far different from her usual style. "I decided to dress as Mrs. Claus going to the club," she said. And Eilish wasn't done making jokes about her fashion choices - something the young starlet's gotten much commentary on - just yet.

"This is hard to say for me, but the real reason I wore big, oversized clothes back then is... I was actually two kids stacked on top of each other, trying to sneak into an R-rated movie," Billie, who rose to fame in her teen years and is about to turn twenty, hilariously said.

Billie Eilish Best SNL Sketches
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And Eilish wasn't the only familiar face returning to 30 Rockefeller Plaza: the beloved Kate McKinnon starred alongside the singer for quite a few funny moments. Our personal favorite? The Be a Good Neighbor sketch, where Billie invites Kate, dressed as an older adult, to Christmas dinner. Only to find out that the sweet-appearing neighbor is not the kind of guest she meant to invite...

The 19-year-old Grammy winner wasn't the only Eilish to bring laughs to the crowd on Saturday: Billie's parents and brother/producer Finneas were all present for the holiday episode. The Bad Guy singer's mom wore an adorable - and LOL-worthy - ugly Christmas sweater that said, "Billie's mom," with a picture of her daughter's face as she and her dad introduced the musical guest.

Don't want to miss out on all of the fun? You can catch the latest SNL episode on NBC's website.