Fans have been asking one thing for weeks while watching Dancing With The Stars: Where the heck is Zac Efron? As you know, his brother, Dylan Efron, has been competing in the ballroom competition series with his pro partner Daniella Karagach since September, and he hasn't shown up to support the reality star... until this week. That's right! Zac finally made it to the ballroom to cheer on Dylan during the semi-finals on Tuesday! Amazing! His appearance in the audience made viewers freak out alone, but the cameras also caught a hilarious moment from him that is now going viral.