AceShowbiz - Drug abuse and alcohol addiction are two of the ugly realities that are often found behind the glitzy lifestyle of show business. Many times, their run-ins with booze and illegal substances led those who were dealing with them to rehab stints, legal troubles or worse, overdose.

As one of the common attempts to get one's life back on track, rehab treatment is often expected to help the person clean up his/her act and stay sober. That, however, doesn't always turn out to be successful for everyone.

Ben Affleck is a recent example of a rehab grad who relapsed. Years after battling the demon, he joined a residential treatment in 2017 and again checked into inpatient care last year. After leaving the facility later in 2018, he opened up about his lifelong battle with alcoholism, saying, "One is never really in or out of treatment. It is a full-time commitment. I am fighting for myself and my family."

On October 25, he celebrated his one year of sobriety, only to break it as he was caught getting drunk after attending UNICEF Masquerade ball in West Hollywood. The "Justice League" actor was captured on camera almost falling down when walking to his chauffeured car and struggling to keep his balance. After the embarrassing moment, he admitted he had "a slip," but vowed not to let it "derail" his progress.

And he's not the only one who has shown that staying sober is an ongoing battle that continues even after years of commitment and rehab stint. Without discouraging those who are battling similar issues, here are other stars who have had public relapse on alcohol.