The 70s and 80s were pivotal decades in music history ... These two decades saw a revolution in musical styles, blending rock, pop, punk, and funk in ways that continue to resonate today.

Would there be heavy metal without Black Sabbath? Possibly. But it wouldn’t sound nearly as menacing or as dark (or as awesome) if Black Sabbath didn’t set the template in the early ‘70s.

But as all three bands have pretty extensive and outstanding catalogs of music that dominated the '70s ... Page + The Black Crowes Announce Expanded Live Box Set The Biggest Rock + Metal Band ...

As Black Sabbath’s singer for their first decade, Ozzy Osbourne helped shape the direction of a number of heavy genres in the ‘70s. After going ... career of some of rock’s most in-demand ...