VIDEO: Selena Gomez and Jimmy Fallon singing a Mario Kart love song

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Selena Gomez is doing the late night circuit to promote Spring Breakers, in which she's not terrible. Between her performance in the movie, her recent Bieber diss, and now a duet about Mario Kart, it looks like things could be worse for Gomez right about now.

"The blue shell is coming, so I'll go ahead. If you stay behind it'll hit me instead. But, never look back 'cause I'm down, but not dead. I'll catch up to you."