The Prince Of Darkness, heavy metal's original madman and the architect for an entire genre - these are some of the finest songs Ozzy lent his talents to

It's impossible to narrow down Ozzy Osbourne and Black Sabbath's most important and influential songs to just 15, but these are a good point of entry.

Ozzy Osbourne left behind a very heavy legacy. Here's a look at his best songs, from Black Sabbath's "Paranoid" to "Crazy Train" and "Mr. Crowley."