Jay Z's The Black Album and Public Enemy's "It Takes a Nation" seemed like significant milestones in hip hop. Raw Power by Iggy was probably one of the more influential punk albums, along with the Ramone's debut. I think Stevie Wonder's Innervision and Marvin Gaye's "What's Going On" brought soul and R & B in new directions. The Who Live at Leeds defined early metal. Bob Dylan's Blonde on Blonde defined the singer songwriter. U2's Joshua Tree defined stadium rock. The Pixies Surfer Rosa was epic, helping Radiohead's the Bends define indie rock, as well as Nirvana's Nevermind.
