Jay-Z and Coldplay seem to have a few fans between them. You know, like millions of civilians and a few hundred celebrity devotees -- quite a few of whom headed to Las Vegas for a New Year's Eve concert that marked the opening of the Cosmopolitan hotel and casino.
Also on hand at the hotel's event center were John Mayer, who played guitar on Jay-Z's hit "99 Problems," and Kanye West, who offered the crowd "Homecoming." Young mogul Jay-Z even got some vocals from Beyoncé on "Forever Young."
The Ministry pities any single celeb in attendance, as the bash was all about couples -- like Alex Rodriguez and Cameron Diaz, fresh from their holiday in Mexico; Mark Wahlberg and Rhea Durham; Jennifer Lopez and Marc Anthony; Channing Tatum and Jenna Dewan; Ashley Olsen and Justin Bartha; and Ellen Pomepo and Chris Ivery.
After the big show, VIPs headed to the library at the hotel's resident nightclub, Marquee, where music honcho Jimmy Iovine rubbed elbows with Anthony and Lopez, singer Rihanna, Blake Lively, Kelly Slater, Jeremy Piven, Forest and Keisha Whitaker, Dylan Lauren, Oprah's BFF Gayle King and Diddy.
Sound like a starry-enough New Year's Eve? Tell us your thoughts in the comments section below.
-- Matt Donnelly
Photos: Jay-Z, top, pops the cork on 2011 at Marquee at the Cosmopolitan. Right, Rihanna, Jay-Z and Kanye West toast after the big performance. Jimmy Iovine, bottom left, hangs with Marc Anthony and Jennifer Lopez. Credits: Ethan Miller / WireImage