NEW YORK (AP) — Singer-rapper Nicki Minaj and country crooner Keith Urban are joining the "American Idol" panel of judges.

Minaj and Keith Urban will team up with pop star Mariah Carey and Randy Jackson — the sole original judge — in a panel that's been expanded to four members from its previous three.

The makeup of the panel has been in flux since Steven Tyler and Jennifer Lopez announced their exits from the talent show in July. Carey signed on later that month.

Here's a photo gallery of American Idol judges.