Cher has now seen it all. She's witnessed many people cover her music over the years, but Keira Knightley's rendition of the pop icon's "Believe" must be the most unique. In case you didn't know, Knightley has an unusual talent — she can perform songs using her TEETH!

In a March 2019 interview on "The Tonight Show Starring Jimmy Fallon," Knightley impressively used her teeth to play "Raindrops Keep Falling On Your Head," adding that she played that song in her childhood talent show.

Keira Knightley has a bizarre talent that even Cher can't believe. Seven years after first showing off her ability to play songs on her teeth on The Graham Norton Show - on which she used her biters to perform "Raindrops Keep Falling on My Head" in 2018 - the actress returned to the show Nov.

The actress broke out her rendition of the singer's beloved classic, using only her fingers and chompers, during their recent visit to "The Graham Norton Show."

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