Pop superstar Mariah Carey has parted ways with her longtime manager Randy Jackson. The Hero hitmaker has signed on as a client for Red Light Management, the same company which boasts Alicia Keys and Miley Cyrus on its roster. However, the change of representation doesn't mean the pals have cut ties for good - Carey has been working on a number of new tracks with the producer, and they still sit beside one another as judges on the current season of reality TV show American Idol. A source tells Eonline.com, "Things are fine between them and they'll continue to work together but not (with Jackson) as a manager." Carey's 14th studio album is expected to be released later this year (13).