From his high-profile romance with Vanessa Hudgens to his rumored fling with former co-star Alexandra Daddario, it's safe to say that Zac Efron's dating history includes a long list of famous faces. And if we're being completely honest, it's been pretty challenging to keep track.
Though it seems like it was only yesterday when we learned about his relationship with Halston Sage, the High School Musical alum has now been spotted with Australian model, Vanessa Valladares, on multiple occasions since July. But does this mean that they're serious? Here's what we know about Zac Efron's girlfriend.