Now it's Sean "P. Diddy" Combs' turn to be an Osbournes copycat.

Combs and MTV will announce a new reality show today that will presumably entail following the rap impresario around with cameras to tape his behind-the-scenes "real life." 

Reps for Combs and MTV declined to comment yesterday, but the show is expected to debut next fall and sources say its format is going to be "different" in some fashion than The Osbournes

Combs' new project is the latest in what may turn out to be a battalion of reality shows that follow celebs' "everyday lives." 

The growing list of wannabe reality stars includes playmate turned millionaire heiress Anna Nicole Smith, whose reality show on E! debuts next month. 

Liza Minnelli and her new husband David Gest are reportedly in talks with VH1 for a reality show, while Cybill Shepherd, ex-Van Halen wildman David Lee Roth, and even Motley Crue's Tommy Lee have offered themselves up as good subjects for a show. 

Other marquee names tossed into the mix include perennially tan actor George Hamilton and his ex-wife Alana Stewart. Hamilton and Stewart co-hosted a short-lived talk show in the mid-'90s. 

"What The Osbournes managed to do, was demonstrate that the hippest place in show business is now your own reality autobiography," says Dr. Robert Thompson, director of Syracuse University's Center for the Study of Popular Television. 

It's safe to say that Combs and company hope the new show will snag the same kind of notoriety and ratings that Ozzy Osbourne did after he and his family gave MTV almost unrestricted access to their home for four months last year. 

And while Combs is certainly the most high-profile on a long list of reality-show wannabes, he might want to take another look at the club he's joining. 

"It used to be when you were a has-been star you could go on Love Boat or Murder She Wrote, " says Thompson. "Now of course you try and get your own reality sitcom. 

"What made The Osbournes so interesting was that it was something completely different and so unexpected and even The Osbournes are going to find that will be hard to repeat," he says. 

Meanwhile, the first real Osbournes rip-off debuts next month: Say hello to The Anna Nicole Show on cable's E! 

The show, which producers freely admit was inspired by the success of The Osbournes, bows on Aug. 4 at 10 p.m. and will, not surprisingly, follow the buxom blonde's wacky behind-the-scenes life. 

Smith is a former stripper, Guess model and Playboy playmate who married billionaire J. Howard Marshall — at least 60 years her senior — shortly before he died and left her the bulk of his estate. 

Smith then battled Marshall's family in court for the money.

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