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Whitney Houston - Since beginning her destructive involvement with drugs and alcohol in the late 1990s, Houston has made three tours of rehab. Thankfully, they seem to be working. The golden-voiced diva has been on a steady path of recovery since first admitting to substance abuse in 2004. (Photo: Larry Busacca/Getty Images)

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Bobby Brown - While his ex-wife, Whitney Houston, has been able to (slowly) put her life back together through various in- and out-patient treatments, Bobby Brown may have multiple stints behind bars to thank for keeping him from totally self-destructing. (Photo: Landov)

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Eva Mendes - This sultry Cuban star is the picture of confidence and poise, so her self-motivated trip to rehab in 2008 for substance abuse problems came as a shock to everyone. She has since, however, been vocal about her treatment, claiming it has "enriched my life." (Photo: Andrew H. Walker/Getty Images)

Photo By Photo: Andrew H. Walker/Getty Images for Salvatore Ferragamo

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Lindsay Lohan - She's had more trips to rehab than Michael Jackson had number-one hits, but Lohan continues to show defiance in the face of the law. Her hard-partying ways have cost the Mean Girls star her money, relationships and, perhaps worst of all, a once-promising career.  (Photo: Toby Canham/Getty Images)

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Britney Spears - In 2008 Britney's lost childhood and years of bad decisions crystalized in a meltdown that appeared on the front page of every tabloid in the country. Flash forward three years to 2011, after a long rehab vacation and letting her family take the reins on her career and finances, Brit was the biggest comeback story since Betty White. (Photo: Danny Martindale/Getty Images)

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Charlie Sheen - Like Kim Kardashian and her sex tape, Charlie Sheen has used his many stints in rehab and jail to launch an empire. In 2011, the former Two and a Half Men star's booziest — and most lucrative — year yet. Err ... winning? (Photo: Kevin Winter/Getty Images)

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Frankie Lons - Neither the fruits of her daughter Keyshia Cole's success nor her own stint with stardom on a reality TV show could keep Frankie away from the demon of alcoholism. In 2010, she faced the camera one more time, appearing on VH1's Celebrity Rehab with Dr. Drew, who she later called her "angel sent from heaven."  (Photo: Ben Rose/PictureGroup)

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Lisa "Left Eye" Lopes - With the shock of her sudden death by a car accident at age 30, it's easy to forget Left Eye struggled with alcohol abuse for years before she passed away. The TLC member had a life-changing trip to rehab in 1994, after she reportedly set fire to her boyfriend's house, during which she adopted an eight-year-old child from a struggling mother. (Photo: REUTERS/Fred Prouser-Files)

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Samuel L. Jackson - Art imitated life for Jackson in the early '90s, when the popular actor landed his breakthrough role, as a drug addict in Spike Lee's Jungle Fever, just one year after he completed a rehab program for cocaine and alcohol addiction. (Photo: Larry Busacca/Getty Images)

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Natalie Cole - The songstress had to hit rock bottom with her drug abuse (according to her memoirs, she once refused to evacuate a burning building while on cocaine) before a trip to rehab in 1983 turned her life around. But while she kicked her habit, she'll still have to live with the consequences — Cole was diagnosed with Hepatitis C in 2008.   (Photo: Stephen Lovekin/Getty Images)

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Isaiah Washington - It wasn't drugs or sex addiction that sent this former Grey's Anatomy star into treatment, but loss of control of his mouth. The actor found himself faced with a media intervention in 2007 after he allegedly used a homophobic slur against his Grey's co-star, T.R. Knight. He was booted from the show and voluntarily entered "executive counseling" to make amends. What ever happened to washing your mouth out with soap? (Photo: Dimitrios Kambouris/Getty Images)

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Tracy Morgan - Catching on to a popular trend, Morgan checked himself into "image rehab" last year, following an incident during a stand-up sent in which he implied he would stab his son if he found out he was gay. The 30 Rock star made amends by spending time with LGBT youth around the country and apologizing for his insensitive comments. Tracy has also struggled with drugs, but is now allegedly clean and sober.(Photo: John Sciulli/Getty Images)

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Tiger Woods - Following an embarrassing public scandal exposing his many, many infidelities in 2009, the golf pro checked himself into rehab for sex addiction. He emerged humbled by the experience, and considerably less rich after his divorce from wife Elin Nordegren was finalized two months later.  (Photo: Ross Kinnaird/Getty Images)

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Nicole Ritchie - After her weight plummeted to double digits in 2006, this celebutante looked like she needed to attend rehab at the nearest Burger King. Thankfully, she sought more professional treatment from a psychiatrist, who helped the party girl deal with her eating issues and history of drug use, and led her back to the simple life. (Photo: Michael Buckner/Getty Images)

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Daryl Strawberry - The baseball great struggled through several stints in rehab from 2000 to 2002, after which his treatment may have finally begun to stick. Strawberry stayed out of the limelight for much of the rest of the decade, and made a minor comeback in 2010 as a contestant on The Apprentice. (Photo: Stephen Lovekin/Getty Images)

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Dennis Rodman - The Worm's bad-boy act took a dark turn in 2008, when his friends and family (including Lakers head coach Phil Jackson) staged an intervention to get him into rehab for substance abuse. His recovery was documented on seasons of VH1's Celebrity Rehab and Sober House. (Photo: Eduardo Parra/Getty Images)

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Etta James - James spoke frankly about her many trips to rehab in the 1970's and 80's for heroin addiction in her autobiography, claiming that her time at a psychiatric hospital in 1976 saved her life. But the recently departed singer's drug problems haunted her until her last days — she was treated for prescription pill dependency as late as 2010. (Photo: Vince Bucci/Getty Images)

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Amy Winehouse - Sadly, our generation's Billie Holiday will be remembered as much for her rampant drug abuse as she will for her soulful voice. Winehouse's most popular song, the ironically titled "Rehab," foreshadowed her defiance against treatment that ultimately lead to her untimely death last year. (Photo: Dave Hogan/Getty Images)

Photo By Dave Hogan/Getty Images

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Michael Jackson - The most celebrated entertainer in the world paid a huge price for his meteoric fame. Jackson's struggles with treatment for substance and emotional abuse are better-documented than any in history. In 1993, Jackson went to rehab for pain killers at the advice of Elizabeth Taylor. His death in 2009 was at the hands of powerful prescription medication was a tragic end to a complicated life. (Photo: Mark Mainz/Getty Images)