Matt Springer

Since then, a string of classic rockers have staged outsized extended engagements. It all started right here.

It was part of an amazing run of 11 albums in seven years, all of which reached the 'Billboard' Top 10.

For every 'Father Christmas' or 'Happy Xmas (War Is Over),' there's an awful tune or two (or three) to counter it.

The songs are returned to their roots, but not everybody was thrilled.

This was one of the first truly complete albums, an exceptional listening experience from start to finish.

It’s not his best album of the '70s; it’s not even the best album he released in 1975.

It was the sound of modern pop music being forcefully willed into existence.

Yes, it's possible to create a pop record with moments of stunning beauty about of automobiles.

This was the second studio album he released in 1973, and his seventh in five years. Oh, and it was a double album.

'Jesus Christ Superstar,' featuring Deep Purple's Ian Gillan in the lead role, was released as a two-disc concept album in September 1970.