The musician put his hat, which captured the world's attention at this year's Grammy Awards, on sale on eBay to support his charity From One Hand to AnOTHER.

The 'Buffalo Hat' by Vivienne Westwood that Pharrell Williams wore at the Grammys managed to grab more headlines than Daft Punk's helmets (which is no mean feat), but the singer himself probably couldn't have imagined quite how popular it would turn out to be.

At the end of last month Williams announced he'd be auctioning off his headgear to the highest bidder on eBay, with all the cash going to his From One Hand to AnOTHER project. Excitingly, when the auction came to an end on March 2, the top bid had reached the lofty heights of $44,100.

Pharrell wore a new black version of the hat on Sunday night during his performance at the Academy Awards in Los Angeles, where the 40-year-old singer took to the stage to sing his hit "Happy," dancing with assorted celebrities in the crowd, including Amy Adams and Meryl Streep.

Founded in 2008 by the singer and record producer, the From One Hand to AnOTHER non-profit supports educational projects in Williams's hometown of Virginia Beach, Virginia and the organization is currently raising funds for the Pharrell Williams Resource Center, a youth center for kids in the city.