Zac and Vanessa are Not Engaged!

Zac Efron and Vanessa Hudgens won't be walking down the aisle just yet - both stars have denied reports they're soon to be wed.

The High School Musical co-stars, who have dated since 2005, have long been subjected to speculation about their love life, with Efron denying in February that he'd proposed to Hudgens during a promotional trip in Japan.

Now the pair has been forced to speak out again after they were subjected to another round of rumours about an engagement this weekend, after a British tabloid reported that Hudgens had hinted about a possible wedding date.

Representatives for both Efron and Hudgens maintain that while the couple is still together, reports of an imminent marriage ceremony are "not true".