Celebs who secretly went to rehab

Going to rehab is nothing to be ashamed of, nor is it a sign of weakness. In fact, it's something to take pride in, because it means someone is taking action to recover from a problem. These stars, however, all kept their rehab stints quiet. Some spoke out once they were out, and others kept mum for good.

Ben Affleck

On March 14, 2017, Ben Affleck revealed in a Facebook post that he'd spent time in rehab for alcohol addiction.

"I have completed treatment for alcohol addiction; something I've dealt with in the past and will continue to confront," he wrote. "I want to live life to the fullest and be the best father I can be. I want my kids to know there is no shame in getting help when you need it, and to be a source of strength for anyone out there who needs help but is afraid to take the first step."

It was Affleck's second known time in treatment, having previously gone to rehab for alcohol abuse in 2001.

While Affleck, 44, was open about his stint once it was over, he kept mum about when it began and how long he was actually in rehab — no one had a clue until he made the announcement. In fact, the only inkling that the public had that there may have been an issue was when he was spotted out with a detox nurse in January 2017.

Selena Gomez

Selena Gomez first secretly checked into rehab in early 2014. Her rep insisted she wasn't there for substance abuse reasons, but insiders disagreed: A source told Radar Online that Gomez had been "partying very hard … experimenting with marijuana and prescription drugs, including Xanax and Ambien … Her friends and family became increasingly worried that there might be a serious problem." Other sources told TMZ that Gomez was seeking treatment for alcohol as well as prescription drug abuse, and that she often smoked marijuana also. Gomez left treatment after only two weeks, and TMZ reported that she didn't seek any outpatient treatment or therapy once she left.

In 2016, after bailing on a world tour, Gomez quietly checked into a rehabilitation center in Tennessee, reportedly to deal with anxiety and depression related to lupus, calling it a "really difficult time."

Brad Pitt

Brad Pitt has been open about his past drug use and moving on from it, but sources say that after Angelina Jolie filed for divorce from him in September 2016 that he actually got help getting clean for good.

"For a long time I thought I did too much damage – drug damage," he told Esquire in 2013. "I was a bit of a drifter. A guy who felt he grew up in something of a vacuum and wanted to see things, wanted to be inspired. I followed that other thing."

After the divorce filing, sources told the National Enquirer (via Radar Online) that Pitt spent time in a pricey sober retreat at the five-star Casa Del Mar resort in Santa Monica, Calif., and that Pitt even threw a party for his Narcotics Anonymous group during his stay.

"Brad's benefitted from the principles and rules that come with dedicated sobriety, and he's found a way to celebrate it, too," a source dished. "His friends have been key in helping him see the positives from clean living … [He] doesn't want any part of drugs or booze right now; he's dedicated to his children. It's what's best for himself and his family in the long-term and that's a bigger buzz than any cocktail or marijuana joint could provide."

Demi Lovato

Demi Lovato has been open about her struggles with bi-polar disorder, drug addiction, self-harm, and bulimia, as well as about her 2010 rehab stint. However, Lovato's subsequent rehabilitation stays, since her initial check-in to deal with relapses and maintain her well-being, have gone under the radar. The "Body Say" singer lived in a sober house in 2013, TMZ reported. Lovato, 24, lived in the facility for more than a year to receive counseling and guidance from professionals in order to remain sober and healthy.

Jon Hamm

Jon Hamm completed a stint in rehab in 2015 to recover from alcohol abuse, but no one knew until he was done. Hamm's rehabilitation came just as the final season of Mad Men was set to air, leading many to speculate that his hard-living onscreen persona as Don Draper may have played a role in his relapse.

"Obviously there can be a lot of discussion about how much of this is related to that, and honestly I don't have much to say about that either," he told Australia's TV Week (via People). "I've said in varying ways that acting can be a difficult endeavor, certainly not as difficult as the recent example I used of being a baby heart surgeon. But it does present its own challenges, and so does life … Life throws a lot at you sometimes, and you have to deal with it as much as you can. I've been very fortunate that throughout the most recent … period, I've had a lot of family and friends support me."

Elizabeth Vargas

Viewers may have noticed that 20/20 anchor Elizabeth Vargas was missing from her post for a few weeks in November 2013. It turned out, Vargas was in rehab for alcohol abuse, and many of her own colleagues didn't even know: The New York Daily News reported that many of her ABC co-workers were told she was simply on medical leave. When whispers grew to a dull roar, her camp finally released a statement, telling press, "Like so many people, I am dealing with addiction. I realized I was becoming increasingly dependent on alcohol. And feel fortunate to have recognized it for the problem it was becoming. I am in treatment and am so thankful for the love and support of my family, friends and colleagues at ABC News. Like so many others, I will deal with this challenge one day at a time. If coming forward today gives one other person the courage to seek help, I'm grateful."

Cory Monteith

Glee star Cory Monteith quietly checked into rehab in March 2013 after previously being open about his struggle with drug addiction as a teen. Unfortunately, he didn't completely conquer nor control his demons: He passed away three months later after relapsing; toxicology reports showed heroin and alcohol in his system at the time of his death.

Eva Mendes

In 2008, Eva Mendes checked into rehab … and to this day, no one is sure why. The ultra-private actress stayed at Cirque Lodge in Utah, and her rep told TMZ, "Eva has been working hard for the past year and made a positive decision to take some much-needed time off to proactively attend to some personal issues that, while not critical, she felt deserved some outside professional support. Out of respect for Eva's privacy, we do not wish to discuss further details."

The ultra-private stunner later responded to an interviewer's joke about rehab in Interview magazine (via Huffington Post), diplomatically snapping, "I'm not making jokes, because people die from this stuff … I'm not angry. But because celebrities' lives are so visible, I think it makes it look lighter than it is … The other day I was reading an article. I don't even remember who the actress was, but she's been around for a long time. She said something like, 'I'm proud that I've had a whole career without making it to rehab.' I thought, 'That's such a negative twist on it.' I'm proud of people who have the determination and the fearlessness to actually go and face their demons and get better. This is a life or death situation … I want to support people for their decisions when they do go in and get help."

She added, "There are so many lies out there regarding my recent trip to Cirque Lodge. But I don't care what people think. I just don't care. So I will neither confirm nor deny … All the stuff that came out a few months ago about substance abuse, there were so many wrong stories. I was so happy about that, because it's when they get the real scoop that would make me really nervous."

Philip Seymour Hoffman

Philip Seymour Hoffman struggled with substance abuse for decades. In May 2013, TMZ reported that he checked into an East Coast detox facility after relapsing with heroin use, checking out after 10 days and getting right back to work on a film set. Unfortunately, his demons weren't gone: In February 2014, the Oscar winner died from a "massive" overdose of cocaine, heroin, benzodiazepines (anti-anxiety medications), and amphetamines ("uppers," like Adderall).

Demi Moore

In early 2012, Demi Moore checked into the luxurious Cirque Lodge rehab center in Utah to cope with addiction and eating disorder issues. Weeks before, she'd been hospitalized for alleged substance abuse, TMZ reported, after suffering seizure-like symptoms at a party in her home. Moore reportedly suffered a reaction to "whip-its," or nitrous oxide. She checked out a month later and as yet hasn't commented on her stay, nor what prompted it.

Zac Efron

In spring 2013, TMZ reported Zac Efron quietly checked into rehab twice after struggling with alcohol and drug abuse — and no one was the wiser until that September. In May 2014, Efron opened up to The Hollywood Reporter about his battle with addiction.

"No matter who you are, you face challenges growing up," he said. "You go with your things, you learn, you have to. It's impossible to lead an honest and fulfilling life as a man and not make mistakes and 'fess up to them when you need to. But it's especially humiliating when they happen to be so public and so scrutinized. When you have success young, and you accept the good things, you have to accept all of it. You have to accept the moments of glory but also a great responsibility. And that responsibility, to some degree, involves being a role model. At the same time, I'm a human being, and I've made a lot of mistakes. I've learned from each one."

He added, "I was drinking a lot, way too much … It's never one specific thing. I mean, you're in your 20s, single, going through life in Hollywood, you know? Everything is thrown at you. I wouldn't take anything back; I needed to learn everything I did. But it was an interesting journey, to say the least.

He doesn't regret getting help. "I just started going [to therapy] and I think it's changed my life. I'm much more comfortable in my own skin. Things are so much easier now, [but addiction is] a never-ending struggle."