Blake Shelton fans were treated to one heck of a surprise on Friday night!
It was business as usual for the 40-year-old country star during his St. Paul, Minnesota, concert -- until Gwen Stefani made a surprise appearance!
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"Hi Minnesota Gx," Stefani captioned a shot of herself in Shelton's tour bus before heading onstage.
The duo couldn't have looked more stylish while jamming to their duet, "Go Ahead and Break My Heart."
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See Stefani's surprise below.
And of course the "Misery" singer couldn't leave before performing one of her own hits -- and getting a huge bow-down from her beau.
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This isn’t the first time the couple has made a surprise appearance at each other's shows.
In fact, Shelton surprised Stefani's fans during her Detroit, Michigan concert just last month -- and the two couldn't help but cuddle up on stage.
See more in the video below.