Katy Perry hits the Saturday Night Live stage on Saturday, May 20 as she returns to the hit NBC sketch show as the Season 42 finale musical guest. The pop star, who this week announced her fourth album, Witness, is expected to perform songs off the forthcoming record, including "Chained to the Rhythm" and "Bon Appetit."

Meanwhile, Baywatch star Dwayne "The Rock" Johnson will host the episode, marking his fifth time hosting SNL.

Catch Katy's performances below as they become available.

Katy Perry's Best Live Vocals:

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