David Duchovny requests privacy for his family upon entering a rehab facility to treat sex addiction. The 'X-Files' star is married to actress Tea Leoni and plays a womanizer on Showtime's 'Californication' series.

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Has Amy hit rock bottom? Winehouse checks into a rehab facility in England. She had also spent time in a program back in January, but had continued on a downward spiral after leaving.

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Comedian, actor and Howard Stern sidekick Artie Lang, seen performing his stand-up in February, has entered an outpatient rehab program after years and years and years and years and years and years and years of hard partying.

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Former 'Melrose Place' resident Heather Locklear completed a month of treatment for depression and is, according to a friend, "feeling really great." The actress, seen in January, received spa treatments and horse riding sessions in addition to doctors care.

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Ron Wood is seeking treatment for problems with alcohol. "Following Ronnie's continued battle with alcohol he has entered a period of rehab. His close family and friends say he is seeking help and look forward to his recover," the Rolling Stones guitarist's spokeswoman said.

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Lynda Carter, who shot to fame playing the metal-cuffed superhero 'Wonder Woman' in the 1970s, admits for the first time that she went to rehab almost 10 years ago and is a recovering alcoholic.

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After claiming in May that he checked into rehab because he "really needed a safe environment to recuperate" from painful foot surgery, Aerosmith rocker Steven Tyler admited that what he really needed to get over was an addiction to the sleep and pain medications he was taking following the surgery.

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Shawn Southwick King, the wife of CNN news anchor Larry King, sought treatment for "medication issues related to her chronic migraine problem," a friend of the couple says.

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Former 'American Idol' contestant Nikki McKibbin and actor Gary Busey will both participate in season two of VH1's "Celebrity Rehab with Dr. Drew." Busey will serve as a mentor to McKibbin and the other celebrity patients, sharing his experiences with cocaine addiction.

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Jodie Sweetin entered rehab in 2005 to battle a crystal meth addiction that ruined her first marriage. The former 'Full House' actress, here on April 2, 2008, now has a new husband, and a 7-week old baby after breaking her habit.

Frazer Harrison, Getty Images

Lynda Carter, who shot to fame playing the metal-cuffed superhero 'Wonder Woman' in the 1970s, admits for the first time that she went to rehab almost 10 years ago and is a recovering alcoholic.

Getty Images,Getty Images

After claiming in May that he checked into rehab because he "really needed a safe environment to recuperate" from painful foot surgery, Aerosmith rocker Steven Tyler admited that what he really needed to get over was an addiction to the sleep and pain medications he was taking following the surgery.

Frederick M. Brown, Getty Images,Getty Images

Shawn Southwick King, the wife of CNN news anchor Larry King, is seeking treatment for "medication issues related to her chronic migraine problem," a friend of the couple says.

Paul Morigi, WireImage.com

Former 'American Idol' contestant Nikki McKibbin and actor Gary Busey will both participate in season two of VH1's "Celebrity Rehab with Dr. Drew." Busey will serve as a mentor to McKibbin and the other celebrity patients, sharing his experiences with cocaine addiction.

Getty Images / WireImage.com

Jodie Sweetin entered rehab in 2005 to battle a crystal meth addiction that ruined her first marriage. The former 'Full House' actress, here on April 2, 2008, now has a new husband, and a 7-week old baby after breaking her habit.

Frazer Harrison, Getty Images

'Spider-Man' actress Kirsten Dunst checked into the Cirque Lodge rehab facility in early February, and has recently revealed why she sought treatment. "I didn't go to Cirque Lodge for alcohol abuse or drug abuse. I went there for depression," the actress said.

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'Ghost Rider' and 'Hitch' star Eva Mendes says she's "enjoying taking care" of herself since checking out of the Cirque Lodge in Utah -- the same rehab facility Lindsay Lohan attended.

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Pat O'Brien of the celebrity news show 'The Insider,' checked into rehab earlier this year. "O'Brien and his doctors felt this is the best course for maintaining his sobriety," a statement released by his show said on Feb. 8.

Albert L. Ortega, WireImage.com

Actress Sean Young, seen here at the Director's Guild of America Awards before being kicked out for a drunken tirade, has "voluntarily admitted herself" to a rehab facility to battle alcoholism, which she has battled "for many years," according to a statement.

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No stranger to rehab, Amy Winehouse checked in for treatment yet again on Jan. 24 just days after British tabloid The Sun published a video and photos showing her allegedly smoking crack.

Brian Kersey, AP