This heroic rocker – a glorious showcase for the E Street Band and the first single released from Darkness – went through a series of changes: Springsteen's book Songs includes nine pages of handwritten revisions. Originally, he said, "Prove It All Night" had "a chorus but few lyrics." Explaining one of its possible inspirations, Springsteen credited a mythically gritty source: a New York cabbie he'd ridden with. "He was just talking about how . . . all your life you gotta prove something to somebody," Springsteen told a concert audience in 1978. "He says, 'I gotta go home, I gotta prove it to my wife – I come to work, I gotta prove it to my boss.'"