Jennifer Lopez shocked fans at an American show this weekend when she wore a T-shirt bearing the words "Fuck It!" The diva stunned concert organisers with the crass slogan on a black cropped-top at the eighth annual Wango Tango pop festival in California on Saturday (14-05-05)The Latin star, who was among the final acts at the festival - which also featured Gwen Stefani and the Backstreet Boys - thrilled the 50-0-0-strong crowd with her showThe three-times married beauty was escorted on stage by current husband Marc Anthony before being joined by singer Fat Joe, who accompanied her for a performance of her latest track 'Hold You Down' and a rendition of his hit single 'Lean Back'Last month, the sexy star angered animal rights group PETA because of her decision to continue wearing furThe Latin babe was greeted by teams of angry protestors holding banners, which read 'Monster-in-Fur' at the Los Angeles premiere of new movie, 'Monster-in-Law'PETA vice president, Dan Matthews quipped at the time: "JLo's next movie may well be a remake of 'Escape from LA'"