Eminem, who just finished his US Anger Management tour, has canceled his European tour. The reason from his record label is "exhaustion and other medical issues." We sure hope Em is OK. Hopefully Mariah had nothing to do with this. That would be some serious power on her part if she could manage this defeat. The shows are not expected to be rescheduled. Looks like even the Europeans will have to catch him on Showtime. Don't worry, he's not retiring.