We knew Selena Gomez had a thing for Mario!

The Spring Breakers star joined talk show host Jimmy Fallon to cover a Mario Kart love song written by Sam Hart that went viral in 2008. Check out the duet above!

Fallon donned Mario's iconic red hat and moustache, while Selena seemed to combine brother Luigi's mo with Princess Peach's crown.

Selena has been busy this week, also telling David Letterman that she made her ex Justin Bieber cry.