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Performance Rank: No. 5
The Impersonation: Celine Dion, "Beauty and the Beast Theme Song"
Why We Love It: Not only does this impression include one of Dion's legendary hits, it also features Grande imitating the Canadian singer's speaking voice. In a word: epic.
Performance Rank: No. 4
Britney Spears, "Mary Had a Little Lamb"
Christina Aguilera, "The Wheels on the Bus"
Celine Dion, "Can't Feel My Face"
Why We Love It: Grande nails every single one of these singers' vocal signatures, and also manages to pull off a duet with Fallon toward the end. Points for mad skills and style.
Performance Rank: No. 3
The Impersonation: Jennifer Lawrence
Why We Love It: Grande is literally pitch-perfect and she's not even singing.
Performance Rank: No. 2
Britney Spears, "Baby One More Time"
Shakira, "Whenever, Wherever"
Celine Dion, "It's All Coming Back to Me Now"
Whitney Houston, "I Will Always Love You"
Why We Love It: This Whitney impression is so on the money, and Grande also gets points for her acting chops in this one. (Also, that Jay Z impression at the end is a perfect cap-off.)
Performance Rank: No. 1
Jessie J, "Mamma Knows Best"
Britney Spears, "I'm Not a Girl, Not Yet a Woman"
Nicki Minaj, "Bottoms Up"
Katy Perry, "E.T."
Shakira, "Hips Don't Lie"
Judy Garland, "You Made Me Love You"
Why We Love It: You know, just chilling at home, in bed, singing your heart out. Normal Friday. But seriously: This impromptu performance from Grande's slightly younger years demonstrates such incredible range. Color us impressed.