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."

Black Sabbath, the band that Osbourne famously fronted, played their first U.S. gig at Rowan University. The school shared a flier from the band's inaugural stop in the states and a cheeky story about the gig. Black Sabbath played their first U.S. gig on Oct. 30, 1970 at the then-Glassboro State University.

Black Sabbath guitarist Tony Iommi said he thinks bandmate Ozzy Osbourne was "determined" to play the group's farewell show and "really just held out" to do so weeks before his death.