The place to be to ring in 2011? For many of Hollywood's elite, it was The Cosmopolitan of Las Vegas, the city's newest and most glamorous resort, which kicked off a grand opening celebration with concert performances from JAY-Z and Coldplay, plus guest surprises by Kanye West, Beyonce and John Mayer.
Coldplay kicked off the evening with a 12 song set, which included Yellow, In My Place and Clocks. To ring in the New Year, JAY-Z joined Coldplay on stage for a rendition of Lost, followed by a countdown to midnight. JAY-Z took the stage for the first hours of 2011 and was joined by Kanye West for an impromptu freestyle performance of Run This Town, Can't Tell Me Nothing and Runaway. As Kanye left the stage, John Mayer joined pal JAY-Z with his guitar for several songs, including Public Service Announcement and 99 Problems. The ultimate collaboration of the evening came when Beyonce joined her husband on stage for Young Forever. She continued to wow the crowd, bringing Coldplay frontman Chris Martin back out for an acoustic duet of her hit, Halo.
JAY-Z summed it up best, saying You will never get to see this again."
The hotel was buzzing all weekend with a who's who of the entertainment world, including: Gwyneth Paltrow, Alex Rodriguez and Cameron Diaz, Jennifer Lopez and Marc Anthony, Rihanna, Mark Wahlberg, Jeremy Piven, Kirsten Dunst, Kellan Lutz, Blake Lively, Florence + the Machine, Ellen Pompeo and Chris Ivery, Rashida Jones, Justin Bartha and Ashley Olsen, Charlotte and Samantha Ronson, Whitney Port, Marc Salling, Channing Tatum and Jenna Dewan, Kristin Davis, Lance Bass, Jamie Lynn Sigler, Taraji Henson, Brandy, Sugar Ray Leonard, Armie Hammer, Jessica Szohr, Mel B, BJ Novak, Dr. Dre, Emmy Rossum, Emmanuelle Chriqui, Busta Rhymes, Forest and Keisha Whitaker, Haylie Duff, Nick Zano, James Marsden, Olivia Munn, Ben Folds, Selita Ebanks, Bonnie Somerville, Cheryl Hines, Rachael Harris, Christina Milian, Holly Robinson Peete, Teri Polo, Giada de Laurentiis, Gail Simmons, Shiri Appleby, Gayle King, Aziz Ansari, Abigail Spencer, Rachael Taylor, Chris Matthews, Aaron Paul, Timothy Olyphant, Lisa Ling, Ben Lyons, Wilmer Valderrama, Jackie Warner and Colin Cowie.
The 2,995-room resort includes oversized rooms (most are over 700 square feet) including many with private terraces, plus a . 100,000 square foot casino, shopping, Sahra Spa & Hammam, three pools and restaurants by some of the country's finest chefs.