U2 are raising funds for Amnesty International with a new range of T-shirts. The group, fronted by Bono, has teamed up with Hard Rock International to produce the U2 Signature Series: Edition 30 T-shirt line in the name of charity. They have pledged 15 per cent of the item's $32 (£20) retail price to the human rights charity, and are hopeful the extra money will help boost the organisation's work. The Edge says, "I hope this T-shirt generates loads of cash for Amnesty International and their tireless work towards the release of prisoners of conscience all around the world. Plus there's a guitar on it - so it's a win-win as far as I'm concerned." The T-shirt will be available online or at Hard Rock venues around the globe.