Beyonce & Solange Knowles

Las Vegas, NV – December 30, 2010 – The Grand Opening weekend of The Cosmopolitan of Las Vegas kicked off last night with the debut of Marquee Nightclub and Dayclub, with famous faces toasting the new venue. Stars turned out for the exclusive private bash, which featured a performance by indie rock band Florence + The Machine.  Couples spotted included Jay Z and Beyonce, who came to check out Beyonce’s sister Solange Knowles who DJ’d in the club’s Library room along with Samantha Ronson, on again duo Cameron Diaz and Alex Rodriguez, Haylie Duff and Nick Zano, Channing Tatum with wife Jenna Dewan, Ellen Pompeo with husband Chris Ivery and Mel B with Stephen Belafonte. Also catching the private concert were Blake Lively and Jessica Szohr of Gossip Girl fame, Kellan Lutz, Jamie Lynn Sigler, Kirsten Dunst, Emmy Rossum, Bonnie Somerville, Shiri Appleby, Taraji Henson, Lucas Haas and  Emmanualle Chriqui.  Fellow musical artists John Mayer and Jared Followill of Kings of Leon arrived in time for the show as did Brandy, Christina Milian, Lance Bass and Fab Five Freddie. Reality stars seen at Marquee included Rob Kardashian and Kyle Richards from The Real Housewives of Beverly Hills, while notables from the culinary world included Chef Jose Andres, Gail Simmons and Giada de Laurentiis and designer Alexander Wang and model Selita Ebanks represented the fashion segment. International superstar DJs Erick Morillo and DJ Vice walked the red carpet before checking out their new home.  After the concert Wilmer Valderrama hopped on the stage with DJ Vice, hyping up the crowd in the main room while upstairs in the library Jay Z and Beyonce held court next to the DJ booth, enjoying a special set from Samantha Ronson that included plenty of the couple’s hits .  In between sets Ronson challenged Chris Ivery to a game of pool while Ellen Pompeo looked on.  The Grey’s Anatomy star donned a dress designed by Nicole Richie that she gave to her specifically for the opening of Marquee. It was at Richie’s recent wedding where Pompeo and Ivery made fast friends with Ronson .  After rocking the main stage Florence came up to say hello and ended up engrossed in a conversation with Beyonce.  Jared Leto arrived after 3 am, coming straight from his rehearsal and headed right to the Library, where he was spotted admiring the “librarian” cocktail servers.

Florence & The Machine

Florence Welch & Blake Lively

Alex Rodriguez & Noah Tepperberg

Blake Lively & Florence Welch

Florence Welch & Blake Lively

 

Scott Campbell, Ellen Pompeo, & Chris Ivery

 

Samantha Ronson

Jessica Szohr & Kellan Lutz

Emmy Rossum

Florence Welch

Selita Ebanks

Olivia Munn

Jamie-Lynn Sigler & Noah Tepperberg

Heather Payne & Colin Cowie

Jacob The Jeweler & Angela

Fisher Pente & Jamie-Lynn Sigler

Brandy

Florence & The Machine

Wilmer Valderrama, Erick Morillo, & Rob Kardashian

Taraji P. Henson

Taraji P. Henson & AJ Calloway

Carlos Lopez & Lance Bass

Haylie Duff & Nick Zano

Sujit Kundu & DJ Vice

Seth, Sujit Kundu, & DJ Vice

Florence & The Machine

Kings Of Leon

Sujit Kundu, Tommy Alastra, & Jasmine Waltz

Lucy Wolvert & Jasmine Waltz

Erick Morillo, DJ Vice, & Ruckus

Gina & Eric Hadley & Seth

DJ Vice

Solange Knowles & Samantha Ronson

Ellen Pompeo & Samantha Ronson