Larry Norman was Christian rock musician before genre existed . His first solo album , `` Upon This Rock , '' came out in late 1969 . It's a concept record about the end of civilization and how people are going to have to live on this planet for quite some time. More than 300 versions of Norman 's songs have been recorded by other artists .
Larry Norman was Christian rock musician before genre existed . His first solo album , `` Upon This Rock , '' came out in late 1969 . Norman 's fans include U2 , Guns N ' Roses and Bob Dylan . More than 300 versions of Norman 's songs have been recorded by other artists .