Zac Efron

One student thought Jesse McCartney was Justin Bieber!

The 'High School Musical' heartthrob looks a little different, according to these tweets.

We love a #Zanessa throwback.

Business in the front, party in the back.

Because breaking up is hard to do.

From Zac Efron's retirement rumors to the youngest professional sports owner, here's everything buzzing today in pop culture and beyond.

From Zac Efron's worldly new series to Lady Gaga's tour cancellation, here's everything buzzing today in pop culture and beyond.

A new Charlize Theron movie, a Zac Efron travel series, and an ‘Unsolved Mysteries’ update are all on the way.

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

After 50 years, this was supposed to be Scooby-Doo’s first animated feature on the big screen.

They're all in this together.

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