UK star Jessie J got more than she bargained for when she tried to teach British talk show host Alan Carr how to do her “Bang Bang” dance routine. 

Carr surprised Jessie with his Nicki Minaj-style inflatable butt … and surprise wardrobe malfunction. 

Jessie tried to deflate the offending bottom, but  the “thing won’t go down!” Alan laughed.  

Jessie J is performing at London’s Wembley Arena this week. 

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