Fashionistas with a thing for Justin Timberlake will be in for quite the treat this Fashion Week as the singer is set to perform not only at this year's Fashion Rocks, but also at the runway show of his design label, William Rast. 

The clothing line, launched two years ago, was shown during Los Angeles Fashion Week in 2006 but achieved only limited success (As a side, does anyone else remember the restaurant JT launched a while back?).  This is the first time though that Timberlake will present his collection during New York Fashion Week.  He is set to show at the Roseland Ballroom on on September 9th, but something tells us those invites are going to be harder to score than front row seats at an 'N Sync concert in the 90's.