Katy Perry, Nicki Minaj, Miley Cyrus Snared In 'American Idol' Judge Rumor Mill

Khloe Kardashian, Stacy Keibler and Kelly Osbourne on list of potential 'X Factor' hosts.

Giving new meaning to the phrase "throw it up against the wall and see what sticks," the roster of A and B-list stars reportedly in the mix to spice up the judging panels and take over hosting duties on "American Idol" and "X Factor" multiplied by a factor of 10 on Tuesday (July 10).

We've already told you that former "Idol" runner-up Adam Lambert
 is reportedly being eyed to join the panel for the 12th season of the show. We're not sure yet who he'd replace on the three-person panel, but Jennifer Lopez is rumored to be on her way out along with fellow two-season vet Steven Tyler. Even lone wolf "Idol" OG Randy Jackson is said to be on the potential chopping block as the show looks to shake things up to compete with the fresher celeb faces on "Factor" and "The Voice."

E! Online tossed a few more huge names into the big names into the hopper on Monday by quoting unnamed sources saying that Nicki Minaj, Miley Cyrus, Katy Perry, Fergie and will.i.am are also being considered for the vacancies.

A spokesperson for "Idol" did not return requests for comment on the report at press time, but an "Idol" insider told the site, "no one has signed any contracts yet and producers are currently putting out feelers and setting up meetings to see who they can get ... we won't know if Randy [Jackson] and Steven [Tyler] are returning until they see who else is on board."

It seems unlikely that such currently red-hot stars as Perry and Minaj would put everything on hold to spend half a year or more attending rehearsals, tapings and live shows for "Idol." Cyrus is also not likely to put off her recording and movie career to join the "Idol" family, but with the Black Eyed Peas on hiatus and their solo careers in a holding pattern Fergie and frequent "Idol" mentor will.i.am could be legitimate contenders.

This type of bold-name speculation takes place just about every summer. Remember when Mariah Carey
 was touted as the next "Idol" judge after negotiations with J. Lo reportedly broke down in 2010?

The rumors got even more intense earlier this year when Janet Jackson, Beyoncé, the late Whitney Houston, Avril Lavigne and Britney Spears
 were said to be circling a gig on former "Idol" lead judge Simon Cowell's "X Factor." Britney, of course, ended up signing on the dotted line, along with Demi Lovato, but "Factor" still has one vacancy to fill: host.

Actually, make that two spots
 . Following the ouster of Steve Jones after the first season, Cowell is looking for one female and one male host to anchor the show and the alleged list of potential chatters is impressive, and a bit random.

E! also reported that the not-so-short list ranges from George Clooney's girlfriend Stacy Keibler to Khloé Kardashian Odom, Kelly Osbourne, Mario Lopez, sportscaster Erin Andrews and BET's Terrence J.

An unnamed source told the site that Cowell is in no hurry to fill those vacancies. "They're doing the auditions without a host so it's no big deal they don't have hosts right now," the source said. "Simon really wants to take his time. The two-person thing didn't work out the first time and he wants to make sure it works this time."

A spokesperson for "Factor" did not return requests for comment at press time.