It's hard to believe, but Ariana Grande has never been a guest on a talk show! The pint-sized singer has been the musical act before, but never a guest who gets to talk!
And it's a shame because she's HIGHlarious!
Jimmy Fallon helped ease her into the role of 'Guest,' on Friday night's The Tonight Show, by asking her to do an impromptu impression of Celine Dion, and for a minute, we thought Celine was really there!
Complete with a fabulous French accent and chest pumps, Miz Grande nailed it!
Ch-ch-check it out (above)!