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Let them eat cake! Kim Kardashian rings in her 31st birthday Saturday with husband Kris Humphries and former DWTS partner Mark Ballas at Marquee Nightclub inside The Cosmopolitan in Las Vegas.
More from PEOPLE
Let them eat cake! Kim Kardashian rings in her 31st birthday Saturday with husband Kris Humphries and former DWTS partner Mark Ballas at Marquee Nightclub inside The Cosmopolitan in Las Vegas.
