After weeks of rumors claiming Jennifer Lopez will return to "American Idol" as a judge, the singer's boyfriend, Casper Smart, said the buzz is true. "Yes," Casper told E! News, when asked if Lopez would rejoin the Fox reality singing competition for Season 13. According to E!, Casper thought the network had already made the announcement. Ooops. This is happening! Sources confirm to Us Weekly that Jennifer Lopez will be returning to American Idol for its upcoming 13th season. That means Lopez, who served as a judge on the FOX series on its 10th and 11th seasons, will be joining Keith Urban and a still unnamed third judge.