Talk about Hollywood glamour.

Katherine Heigl channeled "Gone With the Wind's" Vivien Leigh in dark, luxurious hair extensions at the 2010 ShoWest Awards in Las Vegas, Nevada on March 18, 2010.

The young actress amplified her alluring, dark hair color with hair extensions full of layers which she wore in loose, spirals to accept the ShoWest award for Female Star of the Year. Dressed in a cherry red Donna Karan dress, she accentuated her look with shimmering eyeshadow, lush lashes, and flesh-toned lipcolor.

Heigl recently left behind her signature golden locks, and joined the dark side with this rich, chocolate hue -- adding a peachy, warmth to her milky complexion.

What do you think about Heigl's new look? Do you prefer the former "Grey Anatomy" star as a blonde or brunette? Short or long? Leave a comment below!

Looking for a new spring 'do? We've tapped three celebrity hair pros for the breakdown of the best hair trends from the runway, off the red carpet, and the colors of the season.