There have been more violent songs in rap, but few more disturbing, and it's not because of what it describes, it's how he describes it - how the perfectly modulated phrasing enhances the horror and black humor of his words. Of course, nowhere is this more true than on '97 Bonnie and Clyde,' a notorious track where he imagines killing his wife and then disposing of the body with his baby daughter in tow. This was unsettling in 1999, when nobody knew his back-story, and years later, when his personal turmoil is public knowledge, it still can be unsettling, because his words and delivery are that powerful. The Slim Shady LP bristles with this tension, since it's never always clear when Marshall Mathers is joking and when he's dead serious.

Then, it wasn't clear to every listener that Eminem was, as they say, an unreliable narrator, somebody who slung satire, lies, uncomfortable truths, and lacerating insights with vigor and venom, blurring the line between reality and parody, all seemingly without effort.

Given his subsequent superstardom, culminating in no less than an Academy Award, it may be easy to overlook exactly how demonized Eminem was once his mainstream debut album, The Slim Shady LP, grabbed the attention of pop music upon its release in 1999.