Singer Pharrell Williams arrives for the BRIT Awards, celebrating British pop music, at the O2 Arena in London February 19, 2014. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT HEADSHOT) (BRIT-ARRIVALS) Image Credit: REUTERS

New York: Pharrell’s days as a mad hatter may be coming to an end.

The famous and buzzed about Vivienne Westwood hat that the producer, rapper and singer wore at the Grammy Awards is being auctioned on eBay to support his charity.

Bids had reached more than $10,000 (Dh36,726) by Friday afternoon for the brown fedora, which became a trending topic on Twitter after Pharrell wore it.

Proceeds will support Pharrell’s From One Hand to Another charity. It provides arts and educational resources for children.

He will perform his hit Happy at the Academy Awards on March 1. It’s nominated for best original song and is currently No. 2 on the Billboard Hot 100 chart. He’ll release the album G I R L on March 3.