Pharrell Williams' much talked about hat is now up for auction at eBay. The hat, which the star wore to this years Grammy Awards, was designed by Vivienne Westwood and is currently going for $10,500 (£6,300). All proceeds from the auction go to Pharrell’s charity From One Hand to Another. The auction listing describes that hat as being "one of the biggest hits of the 2014 GRAMMY Awards” and also states the winning bidder will be provided with a letter of authenticity. If you think you can pull it off, bid for the hat here.