"I have a friend from school in the audience tonight called Jack Robinson," Harry told the crowd between songs. "We’re gonna get as quiet as we possibly can, and then on three, Jack Robinson is going to scream as loud as he possibly can."
Jack was a good sport about screaming and getting his face on the Jumbotron, but he had no idea what was about to happen next.
"I’m gonna tell you a quick little story before we do the next song," Harry continued. "When I was about 14 years old, Jack Robinson stole my girlfriend."
At the risk of inciting thousands of rabid, protective Directioners, Harry added, "If he’s still here at the end of the show, feel free — little kicks, little digs on the way out."
"Jesus Christ, Jack, that’s no way to treat your friends," one of Harry’s 1D bandmates chimed in before the boys kicked into the next song, "Little Things" (not the, perhaps more appropriate "Steal My Girl").