Zac Efron

Kelly is joined by Zac Efron, Missy Elliott, Shia LaBeouf and more.

The 'HSM' cast was all in it together — some more than others.

From Gwen Stefani to Scarlett Johansson, these stars have been accused of being culture vultures.

He fell ill while filming his new documentary.

Zac was flown to Australia for treatment.

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.

'Extremely Wicked, Shockingly Evil and Vile' hits Netflix and select theaters May 3.