The actor, who went to rehab in April for an alleged cocaine problem and alcohol, hit a major milestone: he's been sober for 6 months!
The 26-year-old was spotted wearing an a blue AA chip that members are given after 6 months of sobriety while sitting courtside at the Los Angeles Lakers game this weekend.
It's been a challenging year for the High School Musical star, who broke his jaw and had to have it wired shut after he slipped and fell at home in November. Zac was stuck on all liquid diet for weeks, which couldn't have been fun for him.
Luckily, he's all healed now and promoting his new movie, That Awkward Moment, which hits theaters on January 31.