Kim Kardashian turns Thursday on October 21 but she got the celebration started early with a party in Vegas Friday night, and RadarOnline.com has the pictures.

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Kim was joined by her sisters Khloe and Kourtney, bother Robert, mom Kris Jenner and BFF Brittny Gastineau at TAO nightclub in the Venetian hotel.

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RadarOnline.com was the first to tell you about the Keeping Up with the Kardashians star's  plans for a Vegas kick-off to her milestone birthday celebration.

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We can't wait to see what Justin Bieber gives her!

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