Eminem "We Made You" (2009)
Producer: Dr. Dre, Eminem, Doc Ish (add.)
Marshall Mathers may tell you that the worst vice he was ever hooked on came in the form of a pill, but for fans it was his addiction to cartoony, celeb-lampooning lead singles that really got ugly. The first couple made him a superstar, but by 2004's "Just Lose It" they'd gotten so strained and unfunny that nobody minded when he took an extended break. Then he returned in 2009 with "We Made You," and the formula had only grown more hollow and rotten. The lewd namechecks of starlets and the internal rhymes were still there, but the words felt scrambled and damn near incoherent: "Can he come back as nasty as he can?/Yes he can can, don't ask me this again/He does not mean to lesbian offend/But Lindsay, please come back to seein' men."