Analysts brushed off consequences of Renzi's resignation on luxury.
The tailor is seeking $1.9 million in damages, according to his attorney.
Celebrities, including Sarah Jessica Parker and model Miranda Kerr, were rolled out as eye candy in between rah-rah speeches from executives.
The monthly food and lifestyle magazine is also published in France, the Netherlands, Japan and Sweden.
The series of catwalk shows, talks and panel discussions runs through Friday at the Madinat Jumeirah.
The brand’s chief creative officer will succeed Angela Ahrendts, who is leaving to join Apple Inc. as senior vice president of retail and online stores.
Brad Pitt and Robert Redford will be the honorary cochairs at the splashy affair for the Wallis Annenberg Center for the Performing Arts.