While the MOB girls were out partying in the city, Jay-Z, Kanye West and Rihanna gave it up at Marquee Night Club. Jay-Z perform at the Grand Opening of the Cosmopolitan Resort with ColdPlay. He also brought out his little brother Kanye to perform "Runaway". At the new resort he booked 50 rooms for him and his entourage. Yep HOV is way pasted "BALLIN!"
