Mercyful Fate is a Danish heavy metal band which helped inspire black metal through their lyrics and image. The band was founded in Copenhagen, Denmark in 1981 from the remaining members of Hank Shermann's band Brats and King Diamond's band Black Rose. In early 1981 they helped out Michael Denner with demos for his band Danger Zone. Soon, Shermann, Denner, Diamond, and Denner's bass player Timi Grabber realized their potential as a unit and started performing as Mercyful Fate. The band experienced the usual member changes for a new band, as Denner left (and later returned).