Opening of Marquee Nightclub at The Cosmopolitan Hotel during the resort's grand opening New Year's Eve weekend celebrations. The December 30th and 31st celebrations will culminated with the New Year's Eve Grand Opening Dinner and Concert featuring concerts by Jay-Z and Coldplay. The Cosmopolitan is a new luxury resort situated in the heart of The Strip that features 2,995 rooms with spectacular views and residential-style living spaces with expansive private terraces. Amenities include 14 restaurants, nine boutiques, a 100,000-square-foot casino, the Sahra Spa & Hammam, three unique pool experiences and the Marquee Nightclub & Dayclub along with 150,000 square feet of convention and meeting space. Las Vegas, NV. 12/30/10.