Sabrina Carpenter handcuffs Gigi Hadid during Pittsburgh concert

Sabrina Carpenter playfully "arrested" supermodel Gigi Hadid during her Short n Sweet tour stop at PPG Paints Arena in Pittsburgh on Thursday night, prompting cheers from the audience and social-media posts from Hadid. Carpenter paused her set before performing the song Juno to single out Hadid in the crowd, hand her a pair of fuzzy pink handcuffs as part of a recurring stage bit, and dedicate the song to her.

The exchange began when Carpenter, who also hails from Pennsylvania, asked Hadid where she was from after the model appeared on the arena jumbotron. When Hadid replied that she was from Bucks County, Carpenter responded that they might be "soulmates," called her "gorgeous girl," and said she was "getting so hot and flustered" before placing the handcuffs on Hadid and launching into the song. Carpenter told the crowd, "This one is for Gigi, everybody," as the beat began. Hadid later posted photos and a clip of the moment to her Instagram Stories, captioning one image "Guilty as charged."

The playful arrest follows a tradition Carpenter has maintained throughout the Short n Sweet tour in which she selects an audience member, sometimes a celebrity, for the onstage gag before...