With the latest season of 'American Idol' wrapped up, speculation now begins on who will be on the show when it comes back for its 13th season.

Original judge Randy Jackson has already said he won't be back next season, and current judges - Nicki Minaj, Keith Urban, and Mariah Carey - are all expected to be one and down. Many names have been thrown out as to who will replace them, with the latest being Bruno Mars.

Insiders say that producers want Mars because of his talent, charisma and popularity. What do you think? Would he be a good judge?