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Ariana Grande Covers Justin Bieber's "What Do You Mean?" + The Biebs Loved It

A pop mashup we didn't know we needed.

Ariana Grande's already proven that she gives perfect pop star impersonations, but she's also flawless at covering their hits. On Friday at the Houston Toyota Center, Ariana Grande performed an impressive cover of Justin Bieber's "What Do You Mean?" She took Instagram earlier to preview a mashup between her hit single "One More Time" and the Biebs track. Then she tour it up on the big stage later that night.

Her powerful voice matched with Justin's R&B crooning is a perfect match. Even the Biebs thinks so. He took to Twitter to express his excitement for the mashup.

Can we get a live duet please?