The cool people doing the cool people stuff.  From WorldRedEye:

  • Las Vegas, NV – December 31, 2010 – It was a night unlike any other the Vegas Strip has ever seen at the grand opening of Marquee Nightclub & Dayclub at The Cosmopolitan of Las Vegas on New Years Eve. Acclaimed global superstar DJ Erick Morillo kicked off the night with a set in the club’s Main Room and led the countdown to 2011, while Interscope’s Jimmy Iovine and Dr. Dre got the party started in the club’s VIP room with DJ Ross One. After the Jay-Z and Coldplay private concert in the event center at The Cosmopolitan.  50 Cent arrived with friend Floyd Mayweather Jr., who was in anything but a fighting mood, and the two were seen dancing to music by DJ Erick Morillo before heading downstairs to the VIP room.  Rihanna and Diddy came by to party with Jay-Z, Beyonce, Chris Martin and Gwyneth Paltrow, who all held court at a center table with views of the Las Vegas Strip.  Kanye West and John Mayer, who surprised the crowd with performances earlier in the night at the Comopolitan of Las Vegas’s grand opening concert, were also spotted at the exclusive after-party, as were Alex Rodriguez and girlfriend Cameron Diaz, Forest and Keisha Whitaker, Mark Wahlberg and wife Rhea Durham.  Bottles of Ace of Spades champagne were flowing into the early hours and Jay-Z was spotted pouring glasses for friends including Gayle King.  Solange Knowles did a special DJ set for her sister and brother-in-law and fellow DJ Samantha Ronson grabbed the mic to wish everyone a Happy New Year. Approximately 2:30 am Kanye West continued to surprise guests when he took over the mic in the DJ booth and treated them to an impromptu performance.  Soon after Diddy ordered a bottle of Ciroc for every table in the room as he requested his new hit “Ass on the Floor”. Then Jay-Z joined Kanye in the booth and the crowd was going crazy.  Jay-Z wished everyone a Happy New Year and the two started singing West’s hit song, “Runaway” then their joint hit called “Monster”.  West and Jay-Z were then joined by Rihanna in a singalong to her hit song, “What’s My Name” and the crowd was in a frenzy.  Following Jay-Z and West’s second performance of the evening, Jay-Z asked comedian Aziz Ansari to join them in the DJ booth and entertain the crowd with a “New Years Eve joke.”  Ansari said no, but Jay-Z would not relent and eventually Ansari took the mic and got a few laughs but not before Jay, Kanye and Rhianna were joined by Beyonce in the booth at which point Jay stopped the music to wish happy new year to everyone in the room and to his wife “B”.

Kanye, Jay & Rihanna in the DJ booth performing.

Jay-Z After Party at Marquee from Seth Browarnik on Vimeo.

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