You are correct it was both Ozzy and Judas Priest
Ozzy was sued by the parents of of John McCollum, a depressed teenager who committed suicide allegedly after listening to his song Suicide Solution
Osbourne has said that the song is about the alcohol-related death of AC/DC's Bon Scott in 1980, but Daisley revealed in 2002 that he had Osbourne himself in mind when he composed the lyrics.
Judas Priest were sued by the family of James Vance, who had shot himself in a suicide pact with a friend after reportedly drinking, smoking pot and listening to Priest all day. His family claimed the boys had been driven by “subliminal messages” in their music.
Vance vs. Judas Priest – Infamous Rock Lawsuits
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