Ariana Grande started her first Tonight Show appearance pretty nervous for someone who's a platinum-selling pop singer. But clearly she can put those nerves to rest, because she owned the interview with this bizarrely spot-on Celine Dion impersonation:

via The Tonight Show

I got 20 bucks says we'll see Ariana in a wig & sequin silver dress on SNL next season. And that there's currently an NBC intern dusting off 1998's unproduced Celine Dion sketches.

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