Kim Kardashian turns 39 on Oct. 21, and what better way to celebrate than with a look back at her evolution over the years? We first became familiar with Kim when she was known as a close friend of Paris Hilton and the daughter of famed O.J. Simpson lawyer Robert Kardashian. But before long, she broke free of the LA party-girl pack and became a star in her own right.
While Kim may have risen to fame with a, um, naughty private video, she's since become a huge reality TV star, entrepreneur, and red carpet fixture. And though her personal relationships keep her in the news, her current love with husband Kanye West has resulted in the most exciting endeavors of all: 6-year-old daughter North West, 3-year-old son Saint, 1-year-old daughter Chicago, and 4-month-old son Psalm. See Kim's journey from LA party girl to mellowed-out mom ahead.