Shawn Mendes and Jimmy take turns randomly singing karaoke to pop songs, like Cardi B's "I Like It," getting sprayed in the face with water each time they mess up the lyrics.

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The Tonight Show Starring Jimmy Fallon features hilarious highlights from the show including: comedy sketches, music parodies, celebrity interviews, ridiculous games, and, of course, Jimmy's Thank You Notes and hashtags! You'll also find behind the scenes videos and other great web exclusives.

Slay It, Don't Spray It with Shawn Mendes
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