Iron Maiden are a heavy metal band founded in 1975 in London. They are important in ushering in the New Wave of British Heavy Metal, alongside Motörhead, Pagan Altar, and Def Leppard. Their second album Killers was released in 1981. Written mostly by bassist Steve Harris and produced by frequent-collaborator Martin Birch, the record was the last album to feature Paul Di'Anno on vocals before Bruce Dickinson took over. The record performed well in both U.S. and UK charts and has since been certified Gold in both countries. This vintage Maiden shirt, nicely worn and lightly faded, is from the Killers World Tour in 1981, which featured over 130 shows all across the world.