It’s in the celebrity-packed Outpost Estates neighborhood in the Hollywood Hills.
“I can’t believe it’s been 20 years,” said Paris Hilton of the designer’s milestone collection.
Miss Pop for CND painted glitter onto models’ fingers, and Kabuki for Mac placed crystals under eyes.
Tom Ford and Madonna were also interviewed for the Mr. Porter-produced documentary film about costume designer Arianne Phillips.
Perry hosted the awards show in Los Angeles, which drew Pink, Jared Leto, Hailee Steinfeld, Ke$ha, Lorde, Demi Lovato, Shawn Mendes and more.
The singer and designer have been collaborating for several years.
A host of European designers have referenced religion in their collections, including the likes of Jean Paul Gaultier, John Galliano and Riccardo Tisci.
Moschino’s creative director has been trying to sell the three-bedroom home since April.
Actors, singers and models including Sasha Lane, Kaia and Presley Gerber, and Dita Von Teese hit Moschino’s post-show party at The Roosevelt.