Fallon’s recurring game is simple but hilarious: An on-screen wheel, similar to a slot machine, randomly selects an artist and then randomly chooses a song. The host or the guest then has to sing the track in the style of the selected performer. Lovato went first, and she had to do an impression of Cher singing the children’s song "Bingo Was His Name-O."
The kiddie theme continued with Fallon having to sing "Mr. Rogers’ Neighborhood" as if he was Louis Armstrong. Lovato next had to do Fetty Wap singing "Twinkle Twinkle Little Star." The following round was Fallon doing Dave Matthews with "I’m A Little Tea Pot."
The best, though, was Lovato doing a spot-on impersonation of Christina Aguilera singing the "SpongeBob Squarepants" theme song. Aguilera previously played the game herself around this time last year, doing an incredible take on Britney Spears. Other stars who have participated include Adam Levine, Jamie Foxx, and Ariana Grande, who was amazing with her version of Celine Dion.
Coincidentally, during this appearance, Lovato also told the amusing story of signing Dion’s "My Heart Will Go On" during her first-ever public performance when she was five. Check out that video below!