Nick Jonas and Glen Powell share an unexpected brotherhood they never saw coming. "I'm here at Jimmy Fallon, just performed 'Gut Punch,' but before the performance I was changing into my outfit," Jonas, 33, said in a Thursday, February 5, Instagram video from backstage at The Tonight Show Starring Jimmy Fallon. "A lot of times, a brand will lend you something for a big TV performance or something like that." According to Jonas, he slipped on a borrowed pair of jeans and found an expired plane ticket in the back pocket.