“Yassssss,” Katy Perry screamed across the runway. “Remember when we used to party together?” The singer was in good spirits even before Jeremy Scott’s spring 2017 resort and men’s Moschino show walked down a runway on Friday night at the sprawling L.A. Live complex in downtown Los Angeles. There was reason for the jubilation: Scott, for the first time in over a decade, was showing a brand-new collection under his name in L.A., the city where he lives and where he started showing his eponymous label in 2001. For the homecoming, he persuaded a very L.A. crowd to take in the proceedings – Caitlyn Jenner, who was sandwiched between Perry and the trans personality Candis Cayne; Cindy Crawford and husband Rande Gerber, with their daughter Kaia (their son Presley would walk the show alongside Anwar Hadid); China Chow and Liz Goldwyn; Amber Rose; the actor Colton Haynes; a slew of stylists in gaudy head-to-toe looks; and even a “Real Housewife” of Beverly Hills, Erika Jayne. Perry, a longtime co-conspirator of Scott’s, found a like-minded (and unidentified) aficionado sitting across from her in the front row and hooted and hollered moments before a parade of modeling stalwarts like Devon Aoki, Miranda Kerr, Alessandra Ambrosio and River Viiperi strutted past them in exuberant loungewear that left little to the imagination. There were rumors of other music personalities joining the fray, but in the end that turned out to be nothing more than California Dreamin’. After a show that thumbed a check-list of classic California references, the crowd mobbed Scott at a makeshift party within earshot of the backstage, all shouting variations of Perry’s earlier review: Yasssssss.