Springsteen was a huge fan of Van Morrison's old garage band Them (best known for "Gloria") in the 1960s, but it wasn't until he saw Morrison in concert sometime around 1971 that he truly understood the man's genius. He found the combination of organ and horns intoxicating, and the influence on his first two albums is unmistakable. If you don't believe that, listen to Morrison's "Domino" and Springsteen's "Rosalita (Come Out Tonight)" back to back. Van's 1968 masterpiece Astral Weeks became a particular obsession. "It was like a religion to us," Steve Van Zandt said in 2005. They even brought Morrison's bass player Richard Davis into the studio to play on Greetings From Asbury Park, N.J., and Born to Run.