Be prepared to feel old: today is Eminem's 41st birthday. That's right, Slim Shady is officially middle-aged. Once we stopped examining the cruel, fleeting nature of youth, we decided the best way to celebrate was by listening to some of Mr. Mathers' biggest hits. From "My Name Is" to "Love the Way You Lie" to new track "Berzerk," we've got you covered. So, enjoy. And Happy birthday, Marshall!