About halfway through Addison Rae ’s Saturday evening set on Coachella’s main stage, after the Louisiana singer had implored her audience to “manifest something” for themselves and chant the hook of “Money is Everything,” I tried to take stock of what I was seeing. Rae’s setup was meticulous, maximalist, and totally unified—the boa made of hundred-dollar bills, the backup dancers who looked vaguely like mimes, the scaffolding that suggested Moulin Rouge! could be restaged somewhere between Baton Rouge and the inside of a microchip. I glanced past the margins of the stage: to the sky, where a single-engine plane was dragging a banner that read “THIS IS YOUR SIGN TO MAKE A WILL,” and to the ground, where a woman in front of me had, on her left calf, tattooed the name “AKON.” It was difficult to take in all at once.…