Copyright 2011 Kevork Djansezian / Jason Kempin/ Getty Images
By ANTOINETTE BUENO
Though celebrity clothing lines seem like a dime a dozen these days (anyone remember Jennifer Lopez's Sweetface?), some have truly stood the test of time and become legitimate sought-after brands. From the Olsen twins' highly-coveted (and unabashedly high-end) line The Row to the staggering success of Jessica Simpson's billion-dollar business, check out the top 10 celebrity clothing lines.