Ariana Grande's Céline Dion Impression Will Have Your Heart Going On and On

Christina Aguilera better watch her back. Not only is Ariana Grande throwing out more vocal runs than Mariah Carey on a treadmill, but the pop tart is coming for Xtina's Queen of Diva Impressions crown.

In her first-ever late night talk show interview, Ari faced off with serial impressionist Jimmy Fallon on a duet to the classic theme from Beauty and the Beast.

Fallon, "singing" the Peabo Bryon part, does what Fallon does best -- provide a seque for other people to outshine him. Not only does Ari have the pipes, but she's also got the accent and chest-thumping down to a science.

Check out Ariana Dion/Celine Grande on The Tonight Show below:

Les Fabian Brathwaite, can barely recall but it's all coming back to him now.