A college student left Michael Buble shocked as she belted out an epic version of “At Last” during his Madison Square Garden concert Wednesday.

Erin Bellucci, 21, who is a music major at the University of Delaware, was handed the mic by Buble, 43, before she stunned the crowd with her soulful rendition. The impromptu performance was captured on video by her sister Allison, 24.

The Canadian crooner said after the performance, “That was so beautiful. That may not be your last time here. That was incredible.”

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He also insisted the skit was not planned and said it doesn’t always go like that.

This isn’t the first time we’ve seen a singer take over the show at one of Buble’s gigs, with Andrew Zarrillo belting out “Fly Me to the Moon” in Georgia earlier this week.

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Give the performance a watch below.