In the middle of Taylor Swift’s Eras Tour, her then-boyfriend, Travis Kelce, materialized onstage wearing a top hat and grinning ear-to-ear. He clicked his heels, cradled Swift in his arms, and mimed putting makeup on her face during a well-rehearsed skit, hitting all his marks as a member of her supporting cast.

While tens of thousands of fans in London’s Wembley Stadium screamed their approval, none had shelled out money for tickets to see Kelce. His cameo was the mere cherry on top of Swift’s monumental career achievement: She’d set an attendance record for the venue and generated an estimated $1 billion for the UK economy.

Not that Kelce…