It certainly was tonight, when Charli XCX arrived in a Jean Paul Gaultier couture gown that eschewed the neon green that has defined her Brat era for a more elegant light gray. Even without the ...

She was part of Charli and Troye Sivan's recent joint Sweat tour, and revealed they were a dream to work with. "Charli, Troye, and Shy(girl, DJ) are the most iconic line-up ever," she gushed.