Zac Efron

Check out how your favorite celebrities have transformed over the years.

See how your favorite celebrities have transformed since they first made it big.

From photos of exes to caption mishaps, we've rounded up 25 instances celebrities deleted posts from their Instagram feeds.

These celebrities are sober.

From pop stars to sports stars, check out 20 celebrities who embrace the vegan lifestyle.

The reactions are... mixed.

The 'High School Musical' co-stars dated for roughly four years.

I mean, I see the resemblance.

See the former ‘High School Musical’ star play one of the most notorious serial killers in history.

See how Adam Brody, Jesse Bradford, Josh Hartnett and more resident hotties of the '00s have aged since their heyday.