Kevin Federline will voice a cartoon character Karl Rove in a March 2008 upcoming episode of animated political comedy Lil’ Bush. K-Fed will portray “M.C Karl Rove,” the latest member of Lil’ Bush’s Republican posse in an episode titled “Lesbian Freakfest.” The new season of Lil’ Bush begins Mar. 13 at 10:30 pm ET on Comedy Central.