Celine Dion has unexpected reaction to Ariana Grande's 'SNL' impersonation

Ariana Grande is a 22-year-old pop star with an amazing voice of her own. But she has some of the most fun when she's doing impressions of others' voices!

We certainly saw that over the weekend when she hosted "Saturday Night Live." During the course of her appearance, Grande cycled through versions of Britney Spears, Jennifer Lawrence, Shakira and Celine Dion.