Summer has officially begun and a whole host of celebrities have been pitching the 'For Sale' sign on their front lawns.

Stars like Charlie Sheen, Christina Aguilera, Ben Stiller and Ozzy Osbourne are all looking for new digs to rest their famous bones.

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Charlie Sheen is moving out of Sober Valley Lodge, RadarOnline.com has exclusively learned.

But before you think the sober star has fallen off the wagon, again, he hasn't.

The fired Two and a Half Men actor is moving into a house just two doors down from estranged wife Brooke Mueller's best pal, Paris Hilton, in the same gated community in Sherman Oaks, California where he currently lives.

Charlie Sheen was the victim of an alleged “crazed stalker” last Thursday night who scaled the fence of his multi-million dollar Mulholland Estates mansion and the man appeared in court on charges of trespassing Monday, where RadarOnline.com learned he pled not guilty.

The accused trespasser, identified as 26-year-old David Pack of Kansas City, appeared in a Van Nuys, California courthouse where his public defender pled not guilty for him, after the commissioner deemed Pack too mentally unstable to make his own plea.

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“I would like to leave your state,” Pack first said from behind glass, dressed completely in black and with the same scruffy beard and hair as when captured on video in the back of the police car by RadarOnline.com. 

“I want to make a plea bargain. I would like to speak for myself right now.”

A team of former Israeli military veterans is now guarding Charlie Sheen and his goddess girlfriend Natalie Kenly after a crazed fan managed to penetrate the star's Mulholland Estate mansion, RadarOnline.com has exclusively learned.

The bodyguards joined Sheen's entourage on Friday to provide round-the-clock protection after obsessed fan David Pack was arrested at the actor's home after allegedly hopping a back fence in a desperate attempt to meet his idol.

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Twenty-sox-year-old Pack, from Kansas City, Kansas, was jailed after being arrested for trespassing at Sheen's mansion in Sherman Oaks, Calif., in the early hours of Friday morning.

Somehow Pack was able to penetrate the exclusive gated community and scale Sheen's fortified fences, making it onto the property.

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RadarOnline.com has learned that at the time of the security breach, the ex-Two and a Half Men star was sitting outside near his pool and relaxing after cops earlier conducted a search of the house in connection with a possible violation of a restraining order.

When one of Sheen's team eyeballed bearded Pack, moving toward their group, the alarm was raised and police were immediately called.

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"Who are you with?" one of Sheen's pal asked Pack, as he approached Sheen.

"I'm with Charlie," Pack declared, before reaching into his pocket.

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While the man was unarmed, it was still frightening and one of Sheen's staffers swiftly moved in and restrained him in a headlock until cops swarmed the house.

Pack, who is unemployed, was being held in the Van Nuys jail on $1000 bail, late Friday.

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Speaking exclusively to RadarOnline.com, Pack's father insisted his son did not represent a risk to the star and even begged him to cover his bail.

"David traveled to Los Angeles with his twin brother Jason about three days ago in their Honda Accord to support Charlie Sheen," Pack's father told RadarOnline.com, in an exclusive interview.

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"They drove non-stop from Kansas as David believed that Sheen has been persecuted and he wanted to talk with him over plans for a different show.

"My son is not a bad person and he did not mean Charlie Sheen any harm.

"I think that Charlie Sheen should bail my son out because he is a fan and not a stalker who got caught up in this whole media frenzy."

Sheen, who is currently suing Warner Bros. Television and Men co-creator Chuck Lorre for $100 million, will not foot the bill, a source told RadarOnline.com.

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