Blake Shelton Surprises Gwen Stefani On Stage For Duet Of “Nobody But You”

Surprise.

Blake Shelton joined his girlfriend Gwen Stefani the other night during her Las Vegas residency at the Zappos Theater inside of Planet Hollywood.

She got done explaining how weird it was that she had a #1 song in country music when Blake appeared on the stage behind her.

Needless to say, the crowd went bonkers.

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