Oh dear oh dear oh dear. According to reports, Britney Spears has guested on husband Kevin Federline's debut album, singing backing vocals on several tracks. Federline has told a Los Angeles radio station that Britney sings, but doesn't rap, on his hip-hop album.
The first single 'PopoZao' (Brazilian slang for 'big butt', apparently) is available to download from Yahoo! Music, allegedly. The as-yet-untitled, widely-believed-to-be-rubbish album has not been given an official release date, but K-Fed hopes it will be out in the spring.