This Spring season marked Ralph Lauren's 40th year in business. The designer pulled out all the stops on the runway to celebrate the momentous occasion, including a series of stunning looks inspired by My Fair Lady. Get the look for less with this affordable, suspiciously similar black-and-white tiered ballgown (above right) from, of all places, JCPenney.

Left: A look from Ralph Lauren's Spring 2008 collection
Right: Tiered Prom Ballgown at JCPenney.com, Was $180.00, Now $90.00