Kelly Clarkson Sings Toxic by Britney Spears: Listen

Darren Criss transforms Britney Spears' "Toxic" by singing the song in several different genres, including '70s Soul, Heavy Metal, Bluegrass and more in One Song, Many Genres. Watch new episodes of That’s My Jam Tuesdays at 10/9c on NBC!

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Kelly Clarkson covers “Toxic” by Britney Spears