Ryan Seacrest hosted an intimate meal Saturday for “American Idol” judges at Crown, spies say. The secret soiree went down a night before Nicki Minaj and Keith Urban were confirmed to join Mariah Carey and Randy Jackson on the show. Yesterday, they joined again at Jazz at Lincoln Center for “Idol” auditions. Tomorrow, busy Seacrest appears on “Today” before giving away a new car in Times Square as part of Ford’s Random Acts of Fusion.