Lauren Conrad has gone to to the dark side. So to speak.
Showing off a brand new brunette hair color at CoverGirl 50th birthday party in West Hollywood this week, the natural blonde's different look caught our eye.
"It was just time to go for it," says her hair stylist, Kristin Ess. "We've done so many variations of blonde in the past and it was fun to do something new."
Do you agree? Vote on her best hair color below!
What's Lauren Conrad's best hairstyle? Which look/color do you think is best on the beautiful Hills star? View Poll »