Zac Efron, 25, has been single for a while now, but not anymore. The actor is said to have fallen for Maika Monroe, a 19-year-old actress that he met on the set of their movie At Any Price.

Friends reveal that they're really into each other already: ''Zac and Maika have been spending a lot of time together at his house and are definitely hooking up", one source said. "Zac is really into her".