Former brunette bombshell of The Hills, Audrina Patridge has officially gone blonde!

At Sunday Night’s Teen Choice Awards, ‘Drina stepped out with BMX-rider boyfriend Corey Bohan wearing a stunning strapless sweatheart dress paired with electric blue heels. But the most shocking part about her evening getup? Those new blonde tresses.

While Audrina has dabbled in color before, those summer highlights and auburn hues over the past years have nothing on this daring ‘do! Love this blonde babe’s red carpet  look? Steal her style after the jump!

This Purple Strapless Dress from Jovani features the same sweetheart neckline and ruching detail as Audrina’s, but at a fraction of the price. And if you love those shocking blue pumps that add a burst of bright color to the ensemble, these Gabriella Rocha Mylie Pumps will do just the trick.

Photo courtesy of MTV.