Diddy has graced the D.J. booth; Janet Jackson, the private VIP bathroom. It's not easy to get past the doorman and into this lounge, from Eugene Remm of Level V and Mark Birnbaum. Located beneath the luxury steakhouse STK, the small horseshoe-shaped dance floor is surrounded by two tiers of tables and a D.J.-performance stage. A leather bar, marble accents, zebra-print tables, and a velvet-rich Purple Room give nearby Double Seven a run for its money.