Kelly Clarksonlikes to spring surprise guest stars on her audiences, but her husband turned the tables at the final show of herMeaning of Lifetour -- by hitting the stage himself.
Brandon Blackstock, who's often in the wings at Kel's gigs, managed to sneak onstage in Greenville, South Carolina, where he traded places with her guitarist during "Piece by Piece." Kel teared up and gave the rascal a kiss before telling the crowd to give him a hand, saying, "I lost my mind back there. It’s totally fine. Get your crap together.”