PEARL JAM star Eddie Vedder was terrified of appearing on a magazine cover with his shirt off when his career as a rock star was taking off because he'd have to answer to the godfather of grunge, MUDHONEY star MARK ARM. The ALIVE singer admits the grunge icons ruled the Seattle, Washington State, music scene when bands like Pearl Jam, Nirvana and Soundgarden were starting out - and they all fought for Arm's favour. Vedder explains, "If any of us were on the cover of a magazine with our shirts off, then we'd have to come home and answer to Mudhoney. "I always did see Mark Arm as a headmaster figure, and that kept us all grounded. I'm sure we'd have had much more to be embarrassed by otherwise."