X-Sinner is an American hard rock band formed in 1988 by guitarist Greg Bishop. The band is known for having a very similar sound to that of AC/DC, Kix, and Def Leppard. Originating in the white metal scene, the band has expanded their fan base into mainstream metal over the years. They were named the favorite new band of 1989 by the readers of HM Magazine. Their first two albums were produced by John Elefante, former lead singer of Kansas. The albums were released on Pakaderm Records and A&M Records. After the release of their fifth studio album, A World Covered in Blood, the band toured Europe, and performed in the U.S. and Canada. In addition to their concerts and festival appearances, they have opened for such metal bands as Warrant and Paul Dianno. The band performed live with members of Rex Scott's side project GX, and added that material to their live repertoire.