Inspired by the heyday of Manhattan's nightlife, this ultra exclusive lounge in Chelsea from hospitality entrepreneurs Scott Sartiano, Richie Akiva and Ronnie Madra features an elaborate interior design with ostrich leather banquettes and a wall made of 10,000 wooden letters. 1Oak regularly hosts events featuring an eclectic mix of Hollywood's hottest stars like Rihanna, Katy Perry, Rachel Bilson, Chloe Sevigny, among many others, as well as top fashion designers.