 Randy Jackson returned as judge for his tenth season while Jennifer Lopez and Steven Tyler joined the judging panel following the departures of Simon Cowell, Kara DioGuardi and Ellen DeGeneres.Interscope Records, which is part of Universal Music Group, replaced Sony Music Entertainment as "Idol"s official partner record label.Interscope's Chairman Jimmy Iovine, a songwriter and producer, was named as the in-house mentor to work with the contestants on a weekly basis.