Mischa Barton Under Involuntary Psychiatric Hold

Former "O.C" star Mischa Barton was escorted from her home by police officers on Wednesday for undisclosed medical reasons, causing her to miss the premiere of her new movie Homecoming. The police have since transferred her to Cedars-Sinai Medical Center, where she is now being held under involuntary psychiatric hold. Sound familiar? It should, because the same thing happened to Britney Spears not long ago.

There's only speculation as of right now, but Barton has a less-than-perfect past, and is no stranger to medical issues and trouble with the law. She was hospitalized in May 2007 for suspected drug-related reasons, and later did a stint in rehab after being charged with marijuana possession and driving without a license.

Howie Mandel Hospitalized

Game show host and comedian Howie Mandel was hospitalized after experiencing an irregular heartbeat. Doctors expect that he will be released Tuesday.

"He did not have a heart attack," his publicist, Lewis Kay, said.

Kay said Mandel, 53, was hospitalized so doctors could monitor his condition.

"Doctors expect him to be released and back to work tomorrow," Kay said.

Mandel was in Toronto Canada filming scenes for his new show "Howie Do It," when he experienced an irregular heartbeat. He was taken to the hospital, although which one remains unknown.

Mandel is best known for hosting the American version of the game show "Deal or No Deal."

Patrick Swayze Hospitalized

Patrick Swayze checked himself into the hospital for observation after he came down with pneumonia.

Bob DeBitetto, the president and general manager of A&E , said that Swayze had decided to check himself into the hospital after he came down with pneumonia.

The actor, 56, was set to discuss his new show today, The Beast, before he took ill.

His hospitalization comes right on the heels of his interview with Barbara Walters in which he talked about his battle with cancer.

"You can bet that I'm going through hell," he told Walters. "And I've only seen the beginning of it."

Swayze came out last March that he had diagnosed with pancreatic cancer. He has stated that the disease has taken him on an emotional journey. "Yeah, I'm scared. Yeah, I'm angry. Yeah, I'm [asking], why me."

Despite everything, he remains optimistic and has been praised by the Hollywood community as an inspiration to those fighting cancer.

"I keep dreaming of a future, a future with a long and healthy life," Swazye said, "not lived in the shadow of cancer, but in the light."

Amy Winehouse has emphysema

Amy Winehouse has been in the hospital undergoing tests due to her fainting episode last week, and her father, Mitch, said she is suffering from the early stages of emphysema.

"With smoking the crack cocaine and the cigarettes her lungs are all gunked up," he told the U.K.'s Sunday Mirror. "The doctors have told her if she goes back to smoking drugs, it won't just ruin her voice, it will kill her. There are nodules around the chest and dark marks. She's got 70 percent lung capacity.

"It's in its early stages, but had it gone on for another month they painted a very vivid picture of her sitting there like an old person with a mask on her face struggling to breathe."

Mitch Winehouse said his daughter has serious health problems, including an irregular heartbeat, but that tests ruled out the possibility of tuberculosis.

"When we got to the hospital a room was ready," he told the paper. "Several doctors came in and checked to make sure she didn't need any emergency treatment. They put her on a drip straight away because she was dehydrated. She said, 'Don't worry about me, dad. I know I've got to stop taking drugs now.'"

The elder Winehouse said Amy had been awake for two straight days prior to her hospitalization. She slept for three days straight after she was admitted.

She is scheduled to perform at Nelson Mandela's 90th birthdays concert in London and at the Glastonbury Festival this month. Her spokesperson said Winehouse plans to perform as long as her doctors give their permission.

"At present she still intends to perform at her two scheduled dates next week," her spokesperson said. "However the decision will be made entirely on the advice of her doctors and in her best interests. Amy has undergone more scans and tests and we are awaiting the verdict of her doctors."

Mitch Winehouse said he believes it would be good for his daughter to perform.

"When she's been inactive work-wise then that's when the problems really start. The doctors have said that medically there isn't any reason why she can't do Glastonbury," he told the Sunday Mirror.

Amy Winehouse hospitalized

Amy Winehouse was hospitalized after fainting in her London home Monday, her spokesman told People.

The 24-year-old "quickly recovered," but she did need a hand from her manager's assistant "to stop her falling." Her father, Mitch, accompanied her to the London Clinic in Marylebone.

"She's fine. It was a brief thing and they took her in as a precaution," her spokesman said. "Her Dad drove her to a private hospital, but they're unsure what caused it so aren't taking any chances."

The BBC reported that doctors have not made a diagnosis, nor have they determined the cause of her fainting episode. The singer reportedly planned to go outside to sign autographs for some Canadian fans who had been waiting outside her house. Her spokeman said that she fainted after she went outside and discovered the fans had left.

Dehydration sends Kid Rock to hospital

Kid Rock did not perform Friday at the Download Festival in England due to dehydration. The rocker was rushed to the hospital only minutes before his set, the British press has reported. Organizers of the festival said Kid Rock, 37, was hospitalized in Nottingham, nearly a hundred miles north of the capital.

He was due to perform on the main stage at 3:30, but just minutes before an announcement was made that he was unwell. His spokesman told the music magazine NME that his client had stomach cramps and was dehydrated. He had reportedly attended a party the night before that continued until the early morning of June 13.

Kid Rock stirred up controversy earlier in the week when he spoke to the The Guardian about his new hit, "All Summer Long." The reporter asked him about questions about whether the song is a racist anthem, a debate she compared to the confederate flag.

"I still use the confederate flag. Why should someone be able to own any image and say what it is?" he replied. "Sure, it's definitely got some scars, but I've never had an issue with it. To me it just represents pride in southern rock'n'roll music, plus it just looks cool."

Kelsey Grammar has heart attack

A spokesperson for 53-year-old Kelsey Grammar said the "Frasier" star is recovering from a "mild" heart attack he suffered in Hawaii this weekend.

Grammar is "resting comfortably" in an undisclosed hospital, the spokesman, Stan Rosenfield, said. He also said Grammar had the heart attack Saturday, but he will be released early this week.

The actor was paddle-boarding wiwth his wife, Camille, when he experienced heart attack symptoms, Rosenfield added. He was taken immediately to a nearby hospital where doctors diagnosed a "mild heart attack."

The Grammars live in Kona, a district on the island of Hawaii.

Stuntman injured on James Bond site

A stuntman filming an action sequence for the new James Bond film was seriously injured Wednesday. He and another stuntman crashed during a car chase on a winding lakeside road in Northern Italy.

The London-based production company for the film, "Quantum of Solace," said the experienced stuntman who was driving an Alfa Romeo at the time was still in the hospital in serious condition. Marco Girardi, a spokesman for the town of Limone sul Garda and a liaison to the production company, said the driver suffered serious head injuries in the crash. Another driver in the same car also suffered less serious injuries.

Girardi said the crew had been filming for two weeks when the Alfa Romeo crashed into a wall while filming a car chase with a truck and James Bond's Aston Martin. A helicopter on standby during the filming took the seriously injured stunt driver to Verona where he had surgery.

Girardi also said that filming was scheduled to conclude Wednesday, soon after the crash occurred. It was the second accident on the movie set in the past four days. On Saturday an Aston Martin was being delivered to the set when it skidded off the road and into Lake Garda due to heavy rain and poor driving conditions. There were no injuries and the car was later recovered.

Director Marc Forster and star Daniel Craig were not on set at the time of the accident. The production company closed the set on Thursday and workers and officials declined to comment to the press. Barring any more on-set incidents, "Quantum of Solace" will be released in the UK on Halloween and in the U.S. on 7 Nov.

David Hasselhoff hospitalized

David Hasselhoff was taken to UCLA Medical Center Saturday to treat an eye problem. Although rumors circulated that the actor - who has been treated for alcoholism in the past - was returning to rehab, publicist Judy Katz told the Associated Press Monday that was not the case.

"He's fine; he had something removed," Katz said. "He's coming out tonight."

Katz declined to comment further on the nature of the problem.

Just last week Hasselhoff's divorce to Pamela Bach was settled. Hasselhoff will pay $25,000 a month to support Bach and their two daughters. The two divorced in 2006 after 17 years of marriage; they retain joint custody.

Toni Braxton was Hospitalized

Toni Braxton was hospitalized due to chest pains and had to cancel her Las Vegas show on Monday night. She checked into a Las Vegas hospital and was released after undergoing several tests.

The cause of the pains were unknown, but the 40 year-old Grammy winner has been previously treated for pericarditis (a viral heart infection).

The Flamingo hotel-casino offered refunds for the cancelled act, and the President of the hotel issued the following statement:

“We wish Toni a quick recovery and would like her to take the time she needs to regain optimal health. We are looking forward to her return at the end of the week.”

Jessica Simpson was in the hospital

Jessica Simpson was hospitalized for a kidney infection and checked into the Cedar Sinai Medical on Friday with a fever.

The 27-year-old singer/actresshas been dating Cowboy’s quarter back Tony Romo, who was busy in Dallas this weekend and was unable to stay at Simspon's bedside.

Jessica is reportedly doing better now, and will likely be ready to get back to work on her new country music album.