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Everybody needs somebody sometimes. Thankfully these stars went to rehab to get the help they needed.

cathy suhocki
Jon Hamm, photo gallery
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1. Jon Hamm

Recent reports confirm that Jon Hamm spent 30 days in rehab. He checked himself in in late February to deal with issues of alcohol abuse. Hamm was able to spend some healing time in rehab without the press getting wind of his visit until his time there was finished.

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2. Selena Gomez

Selena Gomez admitted herself to rehab in early 2014 because she had "lost sight of herself." Surrounded by many people telling her what to do and how to act, the actress and singer felt she needed to break away for awhile in order to remind herself who she really was.

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3. Demi Lovato

Selena's pal Demi has been very public about her fight with eating disorders. She spent time in rehab in 2011 and openly shares her recovery process with her fans.

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4. Zac Efron

Even hotties go to rehab. Zac Efron admitted he struggled with drug and alcohol addiction, and that his cocaine addiction was the reason for his rehab stint in 2013. Thankfully, the actor seems to have things under control these days, highlighting an exciting upswing in his career.

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5. Gerard Butler

Though rumors swirled about his reason for rehab, the 300 star proactively checked himself in to prevent bad decisions. Following a bad surfing accident in 2012, Gerard entered the Betty Ford Clinic to gain control over the pain before the pain-pills he was prescribed took control of him. Way to get ahead of it, Gerard!

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6. Britney Spears

Waaay back in 2007, she checked herself into rehab for one day. Following the brief stay, the child-star-turned-pop-phenomenon began, let's say, participating in strange activities (like shaving off all of her hair). She then went back to rehab for a month.

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7. David Duchovny

Not far removed from his Californication character Hank Moody, David Duchovny entered rehab for a reported sex addiction in 2008.

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8. Keith Urban

The musician realized in 1998 that he wasn't able to take part in something he loved dearly - recording country music - and swiftly checked himself into rehab to deal with his alcohol addiction. He has expressed what an incredible feeling performing live while sober

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9. Eva Mendes

Before she became Ryan Gosling's baby mama, Eva Mendes spent time in rehab in 2008. Hey, girl. Glad you're better.

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10. Kirsten Dunst

Another star who was the victim of abuse rumors when she decided to go to rehab was Kirsten Dunst. The real reason behind her stay? Her struggle with depression.

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11. Tara Conner

After contest officials threatened to take her crown, Miss U.S.A. winner Tara Conner entered rehab in 2007. She admitted to the public her problems with alcohol abuse, and vowed to take care of herself in order to proudly wear the Miss U.S.A. crown.

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12. LeAnn Rimes

Growing up in the spotlight is difficult. LeAnn Rimes realized in 2012 that she needed help learning how to deal with her own issues. She entered rehab to deal with her ongoing problems with stress and anxiety.

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13. Demi Moore

In 2012, several months after she and Ashton Kutcher filed for divorce, Demi Moore went to rehab at the Cirque Lodge in Utah. Just a short time before, Demi and Ashton were considered one of the most charitable couples, helping others whenever they could. So it's no wonder she got plenty of support from friends.

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14. Mischa Barton

Following a rapid rise to fame due to her role in The O.C., Mischa suffered a ridiculous amount of stress. After she was charged with a DUI in 2007, her family and friends staged an intervention encouraging her to spend time in rehab in 2009.

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15. Tiger Woods

After the fallout with his then-wife Elin Nordegren and allegations of several extramarital affairs, Tiger checked himself into a rehab facility. Though he never confirmed his exact reasoning for his stay, he cited that he needed time to take a good look at himself.