justin bieber, joe jonas
In case you haven't heard, Simon Cowell left American Idol to bring X Factor -- an insanely popular talent show in Britain (Leona Lewis was discovered on it) -- to the U.S. next September. Expecting the show to be the next smashing reality hit, celebs are already lining up for a spot on the judges panel. The list even includes Justin Bieber.
"[Justin] put himself forward to judge some of the episodes," Simon dishes. "We had a phone call from someone on the weekend, someone very well known who out of the blue wanted to be a judge on the show. Literally out of the blue, and it's one of the most famous singers in the world."

Justin would make a good judge considering his massive success in the music industry so far, but what about Joe Jonas? We think JJ deserves some consideration for the job: Like Justin, Joe also became a pop star known around the world at a young age. Plus, Joe already spent time in the judge's chair on American Idol. Do you think Simon Cowell should save a guest judging spot for the Jo Bro? Since he's been in the business longer, would he have better advice to share than Biebs?