which lead singer for manfred mann sang blinded by the light
This was Springsteen's first single. It was released only in the US, where it flopped. It was, however, a #1 hit for Manfred Mann's Earth Band in February 1977, becoming the only #1 Hot 100 hit Springsteen ever wrote. The Manfred Mann version was much more elaborately produced, and Springsteen hated it at first.