AFTER THE MAY 22 SUICIDE BOMB attack that killed 22 people following Ariana Grande’s concert at England’s Manchester Arena, her manager, Scooter Braun, wanted to respond by organizing a benefit show. “I was obsessed with it,” he says of the idea. At first, Grande wasn’t sure when, or even if, she’d be ready to go onstage again. Two days after the attack, though, the singer called Braun and said, “ ‘I need to do something,’ ” he says. “I tell her [the idea] and she goes, ‘OK, I’m in.’ ”
On June 4, just 13 days after the bombing and one day after a separate attack in London, Grande and Braun, backed by Live Nation, put together One Love Manchester, a stadium show for 55,000 people that featured an all-star…