kristin

Kristin Cavallari has gone platinum blonde!

Julie Delahaye

Kristin Cavallari has taken on one of the season's biggest hair trends and dyed her hair a daring shade of platinum blonde. The 29-year-old debuted her edgy makeover at the Carousel of Hope Ball, flooring fans with her glamorous look.

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Kristin Cavallari has dyed her hair platinum blonde

The Hills star showed off her eye-catching new hair colour – a stark contrast to the honey hues she has been rocking in recent months – by leaving her tresses worn down in loose, tousled waves, swept into a side parting for an edgy finish. Ever a beauty icon, she teamed the look with a hint of shimmering eyeshadow and matte pink lips.

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The reality TV star has been rocking honey hued blonde tones in recent months

It wasn't just her hair and make-up which caught fans' attention. Kristin also dazzled with her impeccable style credentials, looking the epitome of glamour in an elegant dusty pink floor-length gown with cut-out detailing to give a glimpse of her enviably toned figure. The reality TV star accessorised her ensemble with a glittering box clutch bag and sparkling statement jewellery.

GALLERY: CELEBRITIES ROCKING PLATINUM BLONDE HAIR

Kristin has been keeping a relatively low profile in recent months, no doubt to spend quality time with her three children, daughter Saylor, and sons Camden and Jaxon. Kristin and husband Jay Cutler welcomed little Saylor in November last year, but less than a month later Kristin faced heartache when her brother Michael tragically passed away.

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She has three children with husband Jay Cutler

She has since opened up about the bittersweet period, revealing that it was her three children who gave her the strength not to "fall apart".

"I'm ok. I'm going to have good and bad days, but I've really found a lot of strength in my kids, especially Saylor," she told People. "I couldn't just fall apart – I had a little baby to look after. When you lose someone, it really makes you realise how precious life is, and so I'm just thankful that I have my babies and I'm thankful for everything in my life."

She revealed that her boys had adjusted well to the arrival of their baby sister. "They're really cute, they lay on the floor with her and they talk to her and she smiles and laughs, and she just thinks they're great," she explained.