Ariana Grande Impersonates Celine Dion on 'Tonight Show' (Video)

Ariana Grande impersonates Celine Dion on 'Tonight Show' with Jimmy Fallon.

The late-night appearance was Grande's first time as an interviewed guest on a talk show.

Ariana Grande entertained Tonight Show audiences on Friday evening with her impersonation of Celine Dion.

For her first time talking — not performing — on a late-night talk show, Grande sat down with host Jimmy Fallon and admitted she felt "so vulnerable."

Fallon whipped out two microphones and the two belted out the lyrics to "Beauty and the Beast." The host took the lead by channeling his inner rock star, and Grande followed singing and talking Dion-style.

"Celine is going to love that," Fallon said.

The "Love Me Harder" singer and Fallon also paired up for one of the host's "Ew!" sketches. She made audiences laugh when Fallon pulled out a photo of a venti latte: "Ew! I prefer a grande," she fired back.