Radiohead, Robbie Williams and KT Tunstall are joining forces to protect the music industry from scalpers who make profits reselling tickets to in-demand gigs. Musicians and live music bosses are keen to harness a share of the profits made by ticket resales online in the U.K, as many tickets for sold-out concerts fetch far more than their face value. A new campaign proposes fans who buy or sell tickets online should be forced to pay a levy, which would profit the music industry and artists concerned. Marc Marot, of the Resale Rights Society, says, "It is unacceptable that not a penny of the estimated GBP200 million ($400 million) in transactions generated by the resale of concert tickets in the U.K. is returned to investors in the live music industry." But the move has angered critics, who insist any new measures to help artists make profits through resales would be unfair to music fans.