Kristin Cavallari in New Blonde Haircut for 2007 with Lowlights

Move over Jessica Simpson, there's a new blonde bombshell in town.

Sexy elegance in a hair design is perfected by the young star with this, one of the hottest modern piecey hairstyles.

Lots of lowlights make an already piecey hairdo look even more dimensional, which some women might actually find makes it look a little messy.

Kristin Cavallari made the fine choice for Hollywood Life Magazine's 9th Annual Young Hollywood Awards.

Picture: April 22, 2007
New: May 25, 2007