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 groups who were featured there to broad exposure and commercial success. Some acts shared the bill with a reformed Black Sabbath during the 1997 Ozzfest tour, beginning in West Palm Beach, Florida. Osbourne reunited with the original members of Sabbath in 1997 and has performed periodically with them since. Since its beginning, five million people have attended Ozzfest which has grossed over US$100 million. The festival helped promote many new hard rock and heavy metal acts of the late 1990s and early 2000s. Ozzfest helped Osbourne to become the first hard rock and heavy metal star to hit $50 million