Bruce Springsteen on Instagram: "“You can’t start a fire without a spark.” Released 40 years ago this month, “that one song that was going to throw gasoline on the fire” — as Bruce wrote — was “Dancing in the Dark.” The first of seven top 10 singles from "Born in the U.S.A.," it was one of the last Bruce wrote and added to the LP — one of his “most well-crafted and heartfelt pop songs,” he recalled."