If you've watched the Tonight Show with Jimmy Fallon, you know he loves to do games with his guests. One of the best segments is the Wheel of Celebrity Impressions, in which the guest and Jimmy take turns singing a random song in the style of a famous singer. Last night, Ariana Grande was on and absolutely NAILED her impression of Christina Aguilera! Seriously, if you close your eyes, you'd swear it was Xtina! Jimmy wasn't too shabby either. Take a look and listen, it's joy for your ears. Then check out my personal fave, Adam Levine when he was on. His Michael Jackson still freaks me out!

Adam Levine!