Celebrity Hair Affair: Lauren Conrad vs. Rachel Bilson

Another celebrity hair poll involving stars with matching styles. This time, it's a half-up, half-down 'do that's captured our style writers' attention.

A couple of SoCal cuties - Lauren Conrad and Rachel Bilson - both gave their trademark long hairstyles an instant makeover by twisting back their bangs on either side of their center part and pinning them in place. Who do you think wears it best?

Which celebrity looks best with this hairstyle?