via eonline.com American Idol has nailed down its first alum turned judge: Jennifer Hudson. Multiple sources confirm exclusively to E! News that the Oscar-winning singer has signed a deal to sit at the judges’ table this fall for season 13. The other two spots are also intended for former Idol contestants:Kelly Clarkson and either Adam Lambert or Clay Aiken. Current judges Nicki Minaj, Mariah Carey, Randy Jackson and Keith Urban will not be returning.