His real name is Marshall Mathers, hence the "M & M" name. In truth, this rapper is undoubtedly talented and has got mad flow. He's working with Dr. Dre, who's not unaware of controversy himself, as a former member of NWA. Aside from his talent, the reason Eminem is so hyped is because his lyrics are usually categorized as misogynistic, racist and homophobic. The hateful lyrics have escalated as Eminem has created an alter-ego knows as Slim Shady, who raps about rape, drugs and murder. The other defining thing about Eminem is his avid dislike for pop stars, such as Britney Spears, Christina Aguilera and the Backstreet Boys. He can't stand them because he thinks they all sound the same. Which is true, most pop music deviates little from songs about love. I personally find it ironic, however because I don't think there's much variety in rap, either. Finally, there was a recent spiel concerning Christina Aguilera. From "The Real Slim Shady":

Shit Christina Aguilera better switch chairs with me
So I could sit next to Carson Daly and Fred Durst
And hear 'em argue over who she gave head to first

Aguilera said on MTV to her friends that he was married to his longtime girlfriend Kim even though he rapped about killing her. Apparently, she then said something along the lines of "Don't let your guy disrespect you" to her audience, which supposedly was the reason for the hostility.