Delevingne celebrated her bachelorette party (dubbed “Popchella”) amidst the Coachella bacchanalia.
Ireland Baldwin, Ashley Madekwe and Riley Keough turned out to the sprawling Merv Griffin Estate in La Quinta.
Katy Perry wore shorts and a Chanel backpack to the luncheon.
Thunder and torrential downpours couldn’t put a stop to this year’s annual fete, which paid tribute to Oscar-nominated costume designer.
The opening drew more star power than usual, since the photographer’s husband happens to be Jake Paltrow, himself a filmmaker and Gwyneth’s brother.
Guests at the Saturday morning event included nominees Julie Delpy, Will Forte and Toby Halbrooks and James M. Johnston.