“I’m not a guy who’s glued to US Weekly,” Portland/Los Angeles producer Bosko told me recently. Before their meeting, Bosko didn’t even know that Kevin Federline was Britney Spears’ husband, or that he was a magnet for bad publicity. Unfortunately for Bosko, K-Fed’s rap album, Playing with Fire, was doomed from its inception. The album was a financial and critical bomb (though Bosko’s production was rarely a target of critics’ pen-lashings). “If you ask 10 people what the Kevin Federline album sounds like,” Bosko says, “nine or probably 10 of them will say it sucks. But I bet not one of them could name a title of any song…everyone jumped on the I-hate-Kevin-Federline bandwagon.” CASEY JARMAN.