Kristin Cavallari Debuts Bold Platinum Blonde Hair, Stuns in Pink Cutout Dress

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We may have just found the real-life Barbie!

Kristin Cavallari looked simply stunning as she debuted new, platinum blonde locks at the 30th anniversary celebration of the Carousel of Hope Ball in Beverly Hills, California, on Saturday.

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But that wasn’t all that turned heads – all eyes were also on her pretty pink Jay Godfrey cutout dress and killer tan.

The Carousel of Hope, which benefits the Children’s Diabetes Foundation, is a cause close to the 29-year-old author’s heart thanks to her husband, Chicago Bears quarterback Jay Cutler.

“Jay is actually a diabetic, so any involvement I can do, I'm always going to jump on,” the mom of three told ET.<p>“I've been to this event before," she added. "It's a celebration and they do a great job, so I'm excited to be here.”

Matt Winkelmeyer/Getty Images

The night featured a star-studded guest list that included Samuel L. Jackson and Jane Fonda, as well as performances from Jamie Foxx and Idina Menzel, and Cavallari was looking forward to seeing them all.

“There are so many big names -- I'm honestly excited to see everybody,” she admitted. “Sharon Stone runs the auction. She's always a hoot -- she's a ton of fun. Jamie Foxx will be great.”

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The glitzy event was hosted by Jay Leno, who poked fun at Republican presidential candidate Donald Trump, joking that his new reality show would be called The Amazing Racist.

, meanwhile, handled the aforementioned auctioneer duties, while Foxx had guests on their feet dancing to “What’d I Say?”

Cavallari and Curtler are parents to three kids -- sons Jaxon and Camden and daughter Saylor -- and the former reality star recently spoke out about haters who decided that her children were too skinny. Find out more in the video below.