Guns n Roses: It's So Easy (1987)

Duff McKagan wrote "It's So Easy" when the band had little money, but a lot groupies. So, the band lived off the groupies and hangers on. Slash changed the song from a hippie ode to a hard rocker. The song helped define GnR when they broke back in '87.
http://www.youtube.com/watch?v=hUwW7RI3U0w&ob=av3n