We know that Mariah Carey is taking over Jennifer Lopez’s place, but who will fill the spot of A.I. judges Steven Tyler and Randy Jackson?

Multiple insiders say that singer Nick Jonas, 19, and rapper Pharrell Williams, 39, are topping the lists of people to fill in the two empty seats at the judges’ panel. Meanwhile, Jackson, 56, will be having a “mentoring role.”

One of the insiders spills:

Nick is pretty close to signing to be the Idol judge.  They flew him in to L.A. last week for final meetings.

Jonas ended his four-month engagement in Broadway’s How to Succeed in Business Without Really Trying recently, and a source says that the producers of American Idol “think that he can help bring that younger demo to the show.”

Williams, who has produced hit records for celebrities like Britney Spears, Justin Timberlake, and Gwen Stefani, is currently working and negotiating on the terms of his contract. Another insider shares:

 Everything is looking good, but they’re still working out details.

Fox reps are yet to comment on the rumor.

Long-time host Ryan Seacrest, 37, is still hosting the show, which premieres this winter.

Photo: Wikipedia