Barneys New York, the luxury specialty retailer, announced today their Holiday 2011 campaign: GAGA'S WORKSHOP. A unique collaboration with Lady Gaga, the campaign brings together renowned creative talents including artists, Eli Sudbrack and Christophe Hamaide Pierson of Assume Vivid Astro Focus (AVAF), and Mugler Creative Director and Lady Gaga Fashion Director, Nicola Formichetti, to create Lady Gaga's interpretation of the iconic Santa's Workshop.