[Firewire]

Zac Efron and Vanessa Hudgens have confirmed that neither has a Twitter account.

The couple told E! News that profiles supposedly from the pair are fakes and that fans should not follow the pages.

Efron said: "Vanessa doesn't have a Twitter. [I don't have one] or Facebook, no MySpace, nothing.

"So if you have me, it's a poser, don't talk to him. And Vanessa doesn't have any of them either. None."

Hudgens added: "I do not have a Twitter! I don't know who it is and apparently there's a lot of people who think it's me and it's freaking me out.

"I dunno, it seems kind of like a hassle and when I'm at home I just like relaxing."

Coleen Rooney and actors Ewan McGregor and Emma Watson are among the stars who have also been impersonated on the Twitter social networking website.

Digital Spy