Keira Knightley has quite the party trick.

Appearing on the World Health Day #HopeFromHome livestream this week, the “Atonement” star used her most surprising talent to help raise money for coronavirus relief.

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“I was thinking of something entertaining to do and I couldn’t think of anything,” Knightley said. “So I’m going to play my teeth, which is my one and only party trick.”

She then performed a rendition of the Beatles classic “Yesterday” by flicking her front teeth.

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Knightley previously showed off her particular talent for playing songs on her teeth last year when she did “Despacito” for Jimmy Fallon on “The Tonight Show”.