Relations within Black Sabbath broke down in late 1977 and Ozzy left the group. Tony Iommi recruited his old Birmingham buddy, Dave Walker, and they recorded some material for Black Sabbath's eighth album, Never Say Die!
"We were grasping at straws, really," Tony Iommi writes in his memoir Iron Man: My Journey Through Heaven and Hell with Black Sabbath. "We had to write an album, we had a studio booked and no singer!"
Black Sabbath played an early version of "Junior's Eyes" with him on TV in 1978, but Ozzy soon returned to the fold and they sent Walker packing. Listen to Walker's take on "Junior's Eyes" here.