Jimmy Fallon’s “Wheel of Impressions†game is a long con to get different pop divas to try their hand at doing Christina Aguilera (unless Christina is playing the game, then it’s time for Golden Girls), but damn if Demi Lovato can’t pull it off. Hot off her turn in the Lionel Richie tribute at the Grammys, Lovato stopped by The Tonight Show to try her best at XTina (skip to 3:30 in the video to see it, though you’ll miss Lovato’s earlier, spot-on Fetty Wap). Lovato does a great job, of course, and makes you wonder what kind of sea creature she could play in a future SpongeBob installment — we vote for a pop-star narwhal.