Kim Kardashian Stuns in Sexy White Dress at Las Vegas Birthday Celebration ...

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Kim Kardashian celebrated her birthday in style!The E! star, who turned 33 on Monday, Oct. 21 and experienced the surprise of a lifetime by getting engaged to in front of friends and family in San Francisco, was in Las Vegas for a lavish party in her honor at Tao nightclub at the Venetian Hotel. The bash kicked off late Friday evening and continued into the wee hours of Saturday morning.'s mama looked gorgeous and glamorous for her big night, donning a white lace corset style formfitting dress, which flaunted her curves and cleavage to perfection. Her blond locks were styled in soft waves and she completed the look with her stunning engagement sparkler and gold strappy heels. She bought the dress while she was pregnant as an incentive to get back to her pre-baby body after having her daughter.

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Kim and her entourage, which included her fiancé, mom Kris Jenner, sisters Khloé Kardashian Odom and Kourtney Kardashian, Scott Disick and BFF Jonathan Cheban, arrived on the red carpet shortly after 12:30am.

The rapper, who had just performed at the Strip at the MGM, donned a red blazer with a gray T-shirt and black pants for his ladylove's big night.

PHOTO: Kim Kardashian Arrives in Las Vegas Before Her Birthday Party

'Let the bday festivities begin Vega$' she captioned an Instagram pic, posing with a fierce entourage: Kourtney and pals Naya Rivera, Blac Chyna and Robin Antin.She also added a snapshot with Vogue Italia Editor-in-Chief Franca Sozzani with the message 'Yeezus Time.' West and Sozzani are collaborating on an art project, set to debut in 2014.

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Once inside the birthday bash, Kim was greeted with a giant cake and sparklers. She later took the microphone and addressed the packed club.

'Thank you for celebrating my 33rd bday with me!' she exclaimed.

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All Access Photo / Splash News

The glitzy night featured a scantily clad 'angel' in wings floating over the dance floor toward the party and servers held up signs that spelled 'Kim.' Beside the dance floor, a slide show was presented, featuring her previous Sin City birthday parties.The newly engaged pair were spotted kissing and snuggling inside the party. Awwww! Before her party, when asked if she would take the surname West, she dished yes, and that her name would be Kim Kardashian West.Very exciting!

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She also revealed that up until the bended knee moment, she thought she was just having dinner on a baseball field with West. She was in so much shock and was 'shaking,' but saved the tears for after the proposal.As for the big day, she doesn't have a wedding dress yet and the size of the wedding will be up to Kanye. What a wonderful, and very happy week for Kimye!

-Reporting by Ken BakerFor the complete story on Kim's Las Vegas birthday party, tune into E! News on Monday at 7 p.m. & 11:30 p.m.

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