Anyone who listens to what is now called Contemporary Christian Music should know the name Larry Norman. In 1969, Norman recorded Upon This Rock on Capitol Records, considered by many the first rock release that was also considered gospel music. He later went on to create the Solid Rock label, which had on its roster Randy Stonehill, Daniel Amos (the band), and Mark Heard, as well as others. So, I suppose that I owe him for my musical tastes. Although I own no Larry Norman recordings, his mark is left on the music of Stonehill and Daniel Amos. He was always a mysterious figure for me - there was always an air of controversy around him, especially because, when I was a teen, he and Stonehill (as well as all of the old Solid Rock people) were not talking. It seems that the various parties forgot their differences in recent years, although I know that the Daniel Amos people were trying to put together a reissue that was a bit undermined by the release of said reissue by Norman's people.
Details are silly, though, at this point. You can find more information around the Internet about Larry Norman, and even more about the controversies, and so forth. I know that I'll give some of his stuff a chance today, and I'll certainly pull out a copy of Stonehill's Welcome to Paradise in Larry Norman's honour.