JAY-Z’S NEW YEAR’S EVE JAM
January 1, 2011 - 5:40 pm
Music star Jay-Z kicked off the New Year with a monster concert that last nearly two hours at the grand opening party of The Cosmopolitan of Las Vegas on Friday. Coldplay opened the concert at 11 p.m. with a 12-song set than passed the torch to Jay-Z, who was joined by Coldplay's Chris Martin, Kanye West, John Mayer and Beyonce, who joined her husband for "Forever Young" and Martin for an acoustic duet of her hit "Halo." (Photos courtesy Ethan Miller/WireImage)
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