• Ariana Grande

Ariana Grande (Photo : Reuters)

Ariana Grande went on the "Tonight Show" on Friday evening with Jimmy Fallon and wowed the audience with her Celine Dion Impression, chest thumping and all. Also, she thinks Richard Dreyfus is cute.

The "Problem" singer stuttered during the first few seconds of Fallon's interview, saying that she was nervous as she never did a talk show before.

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"It's my first time speaking in front of people," said Grande.

Grande also said that she felt vulnerable, but after a few more seconds, she got more comfortable talking on the talkshow.

The 21-year-old pop singer even joked about how there was always yelling on concerts to get the audience hyped.

Fallon finally asked Grande to do her Celine Dion impression and both started to sing lines from the "Beauty and the Beast," with the former singing Peabo Bryson's part, according to Gossip Cop.

The audience was amazed by Grande's spot-on impression of Celine Dion. She did not just do the voice, but also her mannerisms, inflection, gestures and even accents.

Grande also joined Fallon for the show's EW segment, where the talkshow host plays a teenage girl that literally sounds like Lumpy Space Princess from the animated series "Adventure Time."

Sara, Fallon's character, introduced Grande as Alexa Armstrong as they did a little dance together before sitting down.

Armstrong told Sara a problem about her problem of getting only three likes on an Instagram post, one of which was from her dad.

There was also a witty joke where Fallon asked whether she liked a Starbucks Venti. The "Break Free" singer said she preferred Grande.

What caught Fallon off guard was when she asked whether Richard Dreyfus from "Close Encounters of the Third Kind" was ew, to which Grande responded by saying that the actor was cute.

Fallon stopped for a second while he laughed with the audience by Grande's answer.