
Zac Efron
Efron has been one of Hollywood’s biggest heartthrobs for almost a decade. We might think life is perfect for him but that’s not always been the case. In 2013, he went to rehab for drug and alcohol addiction. One infamous incident saw him have a confrontation with a homeless man.

“I was drinking a lot, way too much,” Efron told The Hollywood Reporter. “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.” Now he’s sober after cutting out substances from his life.