'Relapse' debuts at top of US chart<br />
Both rappers score fastest selling records of the year
Rapper gave away tickets on his Twitter page
Rapper opens up about drugs battle
Tickets for Detroit performance will be given away today (May 18)
Slim Shady discusses rehab spell and Sarah Palin
Phoenix, Lionel Richie also premiere songs on MySpace
50 Cent makes the album available on his site
Stewie is even more rude Slim Shady...