I heard the soundtrack first when I was in Ukraine in 1989 before I got the chance to see the film on rented video in the early 1990s upon my return. I borrowed and copied the OST in vinyl format to cassette tape. This is why Ian Gillan’s version was the original version I heard. Here it is in a rare video recording.
Now here is Ted Neeley’s film section
Then 33 years later in a theatrical version in New York (2006). Great performance!!!! Goosebumps.
Steve Balsamo’s version in 2004.