Bummer Summer! Why do the top pop girlies sound so morose this season?

It’s nearly summertime, and we’re all doomed. So says Charli XCX, who’s abandoned the party in her new music and trained her gaze instead on death and destruction: “The world is gonna end, no hope for any of it,” she sings in “Spring Summer ‘26,” her latest single. Charli and preeminent pop divas…