“YOU THINK you just fell out of a coconut tree?”, begins a viral clip of Kamala Harris. It resurfaced in the days after Joe Biden’s disastrous debate performance, but this video has a twist. The song “Von dutch”, by a British pop star, Charli XCX, begins to rev in the background. Ms Harris’s signature belly laugh rises up. A lime-green filter with the word “brat”—the cover art and name of XCX’s new album—flashes across the screen.