Rumer Willis Celebrates 21st Birthday In Vegas

Rumer celebrates with Cristal, cakes and a bevy of celeb guests

Rumer Willis turned 21 with a little help from her friends — and Las Vegas.

The "Sorority Row" star was spotted celebrating the milestone on Saturday night at TAO at the Venetian in Las Vegas.

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Rumer was joined by her famous family at her birthday soiree including her mom, Demi Moore, and stepfather Ashton Kutcher; dad Bruce Willis and stepmother Emma Heming; and younger sisters Tallulah, 18, and Scout, 15. The not-yet-legal girls stayed for dinner and left before the rest headed up to the club.

And Rumer celebrated with not one, but two cakes – including one delivered on the dance floor by an Elvis impersonator.

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The star was also joined by boyfriend Micah Alberti, "Sorority Row" co-star Audrina Patridge – who brought ex-boyfriend Corey Bohan – and Holly Madison, among others.

The partygoers closed out the night with the help of a bottle of Cristal delivered by another impersonator, one copying Madonna – who shares a birthday with Rumer. The Material Girl turns 51 today.

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