Earlier this year, actor Zac Efron had a stint in rehab for what was reported to be alcohol abuse, but it turns out, it was for far worse: a serious cocaine addiction. Apparently the issue started becoming out of control when he was filming for Seth Rogen’s movie “Neighbors” back in April, and when he was a no-show for a few days, “It was common knowledge he was struggling with cocaine.” He also was into Molly as well. Glad he’s healthy now, though!