The Insider.com

Kim Kardashian rung in her 31st birthday this weekend alongside husband Kris Humphries, mother Kris Jenner, sister Khloe Kardashian and Lamar Odom at Marquee Nightclub inside The Cosmopolitan in Las Vegas.

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The picture stands in stark contrast to one that Kim Tweeted last night, saying, "Look at this family photo from 1988. This is so funny! Kinda shows all of our personalities back then!"

What a difference a decade, a lifetime supply of relaxers and a gallon of depilatory cream makes!