Black Sabbath had left the band. Walker, who was at that time fronting a band called Mistress, flew to Birmingham from California in late 1977 to write material and rehearse with Black Sabbath. On 8 January 1978, Black Sabbath made their only live performance with Walker on vocals, playing an early version of the song "Junior's Eyes" on the BBC Television programme "Look! Hear!" Walker later recalled that while in Birmingham he had bumped into Osbourne in a pub and came to the conclusion that Osbourne was not fully committed to leaving Black Sabbath. "The last Sabbath albums were just very depressing
Ozzy Osbourne Ozzy Osbourne John Michael "Ozzy" Osbourne (born 3 December 1948), also known as The Prince of Darkness, is an English vocalist, songwriter, actor and reality television star who rose to prominence during the 1970s as the lead vocalist of the heavy metal band Black Sabbath. He was kicked out of the band in 1979 due to alcohol and drug problems, but went on to have a successful solo career, releasing eleven studio albums, the first seven of which were all awarded multi-platinum certifications in the United States. Osbourne has since reunited with Black Sabbath on several occasions, recording the album