EXCLUSIVE: The sweeping changes on Fox’s American Idol continue. I’ve learned that top music producer Jimmy Iovine is leaving the talent competition series, where he served as an in-house mentor for the past three seasons. I hear he will likely be replaced by former Idol judge Randy Jackson. Iovine, co-founder of Interscope Records and chairman of Interscope Geffen A&M, joined Idol in Season 10, the first without original judge Simon Cowell. With his music executive/producer experience and no-nonsense attitude, Iovine was tapped to fill the void left by the acerbic British music executive. His Interscope Geffen A&M also took over from Cowell’s label in handling the albums of the Idol finalists. While Idol has ended its relationship with Iovine, the show may not be left without a top music producer evaluating the contestants as Dr. Luke has been in talks for the last vacant seat on the judging panel, joining Keith Urban and Jennifer Lopez.