Billie Eilish Performs 'Happier Than Ever' & 'Male Fantasy' on 'Saturday Night Live' - Watch!

Billie Eilish is taking over the Saturday Night Live stage!

On Saturday (December 11), the 19-year-old entertainer appeared on the NBC sketch comedy series as the host and musical guest.

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During the show, Billie took to the stage for a performance of her hit “Happier Than Ever” while her brother Finneas played the guitar.

Later in the show, the musical sister-brother-duo performed her song “Male Fantasy.”

When she first made her appearance as the host for the evening, Billie poked fun at her fashion choices and revealed the hilarious reason why she wears baggy clothes. Here’s what she said in her opening monologue…

Find out which stars will be hosting and performing on Saturday Night Live next weekend.