The bassist of the group, who released  "Mothers Talk", sang on the band's song "Change". John Michael "Ozzy" Osbourne has released more solo albums than him.
John Michael "Ozzy" Osbourne (born 3 December 1948) is an English singer, songwriter, and actor. 
 He was fired from Black Sabbath in 1979 and went on to have a successful solo career, releasing 11 studio albums, the first seven of which were all awarded multi-platinum certifications in the US. 
 As a solo artist, he has released four solo albums. 
 Written by Roland Orzabal and sung by bassist Curt Smith, it was the band's fourth single release. 
"Mothers Talk" is a 1984 song by the British band Tears for Fears. 
