IS JUSTIN BIEBER throwing his good-boy rep out the window? He already has one (dropped) paternity suit under his belt, so we figure it's time that he adds some bad boys to his social circle.

In this case, Bieber was courted by mack daddy Charlie Sheen, who tried to privately send Bieber his cell number over Twitter, but publicly tweeted the number instead. "310-954-7277 Call me bro. C," Sheen tweeted.

He immediately deleted the missive, but a source told the New York Post's Page Six that Sheen's phone immediately started blowing up, receiving 1,800 text messages and many phone calls. Playing along, Sheen apparently answered the phone "Ray's Pizza" and "Winning." But soon his poor cellular couldn't take it anymore, and Sheen was quoted as saying that he should probably get a new number.

Intrepid reporter that we are, we dialed Sheen's digits in the hopes that we could ask questions such as: What were Sheen and Bieber planning to do during their hang? Why would a 46-year-old want to hang out with a 17-year-old? And can we come, too? Alas, an automated message said, "The number you dialed is not a working number."

Major bummer.

But we also believe that it's right on time for Bieber to start sullying that spotless image of his. Bieber's contemporaries are already all over that, with Miley Cyrus taking bong rips between public appearances and Vanessa Hudgens unable to be naked without taking a picture of herself and having it leaked on the Internet.

So, go ahead, boy, get down with your Sheen self.

The Jackson 3

Looks like the Jackson children are following the footsteps of their pops, the dearly departed Michael Jackson.

The current issue of People mag follows up with the Jackson offspring - Prince, 14; Paris, 13; and Blanket (real name: Prince Michael II), 9 - who were last seen publicly on a Jackson-themed night of "The X Factor," during which they were treated to multiple hours of amateur performers butchering their dead father's tunes.

Paris has her sights set on acting, having already signed on to star in "Lundon's Bridge and the Three Keys," featuring such blockbusting celebs as Larry King and his wife, Shawn, as well as former N'Sync-er Joey Fatone. But, boys, hands off. "She's got too many uncles keeping an eye on her," an insider tells People.

Prince and Blanket, on the other hand, have caught the directing bug, according to cousin Genevieve (daughter of Randy Jackson). "They make home movies together and recruit their cousins to act in them," she said. "The cousins are all very close."

People credits Grandma, 81-year-old Katherine Jackson, for the kids' well-being.

TATTBITS * Sarah and Todd Palin are shopping around a new reality show about Todd's "career as a championship snowmobile racer," according to the Hollywood Reporter. But here's the rub: Both A&E and TLC, the network that dropped $1 mil an episode for "Sarah Palin's Alaska," have passed on the property. Could this be the end of the Palin era? Or is Todd just really boring? * Jessica Simpson said on "The Rachael Ray Show" yesterday that she recently felt her unborn babe move for the first time and it made her cry "big crocodile tears." Simpson has been crying on the reg because of pregnancy hormones. "Even a great soufflé would make me cry," Simpson told Ray. Good thing Simpson reportedly just signed a deal with Weight Watchers for $3 million to shed the pregnancy pounds. * Tom Cruise oglers, set your calendar. Paramount will livestream the Rio de Janeiro premiere of "Mission: Impossible - Ghost Protocol" at missionimpossible.com at 4 p.m. today. The premiere will feature a performance by DJ and producer Tiësto.