Ariana Grande dazzled viewers with her impressions of Britney Spears, Christina Aguilera and Celine Dion on the Tonight Show back in September. For those who'd previously known Ariana as "that young pop star who licks doughnuts," the viral clip proved what her fans have known for a long time: The girl can sing.

Whether she's blowing your mi-i-i-nd with her "Bang Bang" verse or delivering a special acoustic version of "Love Me Harder" with The Weeknd, Ari's runs give her pop contemporaries a major run for their money. Even YouTube comedian Miranda Sings can barely maintain her feigned scowl as she watches Ariana cover Beyonce's Dreamgirls track "Listen" back in 2011.

Choosing the "Focus" singer's standout performances wasn't easy given the wealth of options, but we got it done. Enjoy Ariana's biggest vocal high-points (and high notes) in the video above — and let us know which moment's got you watching again and again. If we left out your favorite? We might HAVE to make a sequel video.

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