Ozzy Osbourne, the beloved British rocker who died this week, got an emotional tribute from Coldplay's Chris Martin at a Nashville concert.

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.

A woman has revealed how Ozzy Osbourne once visited her house to cheer up a student with cerebral palsy who was desperate to meet the legendary singer. IT trainer Sue Williams, from Eccleshall in Staffordshire, managed to arrange the meeting in 1983 while the Black Sabbath frontman, who died on Tuesday aged 76, was living in the area.

Black Sabbath legend Ozzy Osbourne performed his final show July 5 with original band members before his death at 76, closing a chapter in heavy metal history.

Osbourne is known both as a pioneer of heavy metal and as a goofy and lovable father on a hit reality TV show of the early 2000s. He was born John Michael Osbourne on Dec. 3, 1948. 93.3 WMMR DJ Jacky BamBam said, "He started it all … Ozzy was your Prince of Darkness."

Over the course of his storied music career, rock icon Ozzy Osbourne faced health battles with substance abuse and Parkinson's disease.

With tears in his makeup-shadowed eyes, Osbourne, the ailing and retiring frontman for Black Sabbath, raged against the twilight of the metal gods.