It's no secret the 12th season of American Idol has had its share of drama and record low ratings. Well now, at least one judge who has been there from the start is moving on. According to E! Online, Jackson is leaving the once red-hot singing competition show after this season; the finale is set to air next week. Rumors spread just today that FOX wants to clean house, meaning canning all four judges.Jackson says in his statement he hopes to devote more time to "other business ventures".