As opposed to his unabashed fraternity boy character in 'Neighbors', Zac Efron chooses to play coy about his love life. Nevertheless, this will not stop his fans from searching for Zac Efron girlfriend 2014 update.

After being spotted with 'Mortal Instruments' star Lily Collins, Zac Efron's girlfriend 2014 is believed to be Halston Sage, his 20-year-old co-star whom he kissed in 'Neighbors'. In an interview with Access Hollywood, Efron praised the blonde beauty.

"She's really sweet. She's a sweetheart," said the 26-year-old who did not confirm anything.

Zac Efron's girlfriend Halston Sage was last spotted watching a Los Angeles Lakers game with the 'High School Musical' actor a few weeks ago. Even if they appear to be dating, Efron tried his best to keep his lips sealed.

When asked if he's officially of the market, he took the question literally and said: "I don't know, I'm not really sure I'm in the market ... I'm not investing. My money's out!"

Last year, Zac Efron's rehab rumors circulated which temporarily tainted his career. Despite such challenge, he considers his rehab stint as a time for learning: "It was an interesting year. I learned so many things. So much. The best part of it was being able to reflect upon that experience and realise how much I have learned about myself and the kind of man I want to be."

Aside from Collins who was reportedly a "good influence" to him, Lea Michele and even Vanessa Hudgens have expressed their concern about Efron's path to sobriety. As per previous reports, though Hudgens is now at peace with her current beau, she still cannot help but worry about him.

Michele, on the other hand, wants Efron to continue receiving professional help in order for him not to end up like Cory Monteith, her beau who passed away in July 2013 because of drugs.