Poor Kevin Federline can't catch a break. His new rap single, PopoZao, is being trashed by music critics. Entertainment Weekly said it was worse than expected and Billboard calls it "a monument to mediocrity." The song has Brazilian stylings and, although it's three minutes long, K-Fed only raps for one minute, in which he explains what 'PopoZao' means. He raps, "In Portuguese, it means bring your ass." Niiiice. The rest of the song is just him whooping and grunting. You can see (and hear) K-Fed rockin' out to his new single here.

Maybe all that bad karma that is catching up with K-Fed. You know... leaving your girlfriend when she's seven months pregnant with your second child, and mooching off your rich wife. His crap single could be payment for all that.