Hollywood stars and celebrities have signed hard hats for a charity auction, hosted by Clothes Off Our Back, raising funds for Habitat for Humanity.
In a massive show of support, Green Day, Ricky Martin (pictured), Linkin Park, U2, Justin Timberlake, The Jonas Brothers, Taylor Swift, Carrie Underwood, Stevie Wonder, 30 Seconds to Mars and a cavalcade of celebrities have penned their names to builders hard hats for the auction.
The Hollywood Habitat for Humanity hard hats will be available until March 6.
