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."

Clad in a black tank top, leather pants and red shoes, the then 34-year-old Osbourne at one point donned a gladiator helmet as he worked the audience into a frenzy with popular solo songs “Crazy Train,” “Mr. Crowley” and “I Don’t Know.” He also delivered Sabbath staples that included “War Pigs,” “Sabbath Bloody Sabbath” and the encore “Paranoid.”

See Blue Man Group's viral tribute to Ozzy Osbourne. The group's unique performance of 'Crazy Train' has fans feeling emotional and nostalgic.