Rap star "Fat Joe" has pleaded guilty to federal tax evasion. The performer, whose real name is Joseph Cartagena (car-ta-GEE'-nah) entered the plea Thursday to a charge of failing to pay taxes on more than $1 million of income in each of 2007 and 2008. The 42-year-old Miami Beach, Fla., resident appeared in federal court in New Jersey because some of the companies he earns money from are incorporated there. (SF Gate)