Have you heard of Leon Max? The fashion titan behind Max Studio lives a chic life splitting his time between his countryside estate in Northampton, England and an equally impressive seven-story mansion, formerly owned by Madonna, in the Hollywood Hills. W‘s Christa D’Souza recently did a feature on the mogul recently, and this week, the mag’s editor-in-chief, Stefano Tonchi, hosted a fashionable fête with Max and Amber Valletta at a private residence in Beverly Hills. The event was held to celebrate W Stories, the hardcover volume with rare access to the artistic collabs that produced some of W‘s most iconic photographs. The turnout at the event included Mert Alas & Marcus Piggot, Michelle Monaghan, Kiernan Shipka, and haute Hollywood stylist Jessica Paster, to name a few.