Ashley Tisdale Denies Romance With Zac Efron

Ashley Tisdale is speaking out about speculation over recent photos of her and fellow High School Musical star Zac Efron.

Efron, 23, joined Tisdale to celebrate her 26th birthday July 2, and photos of the two looking very close raised rumors that they were an item. In December of last year, after four years together, Efron split from their co-star, and Tisdale's close friend, Vanessa Hudgens. Hudgens, 22, was not at the July 2nd soiree.

But Tisdale, who rocked a Temptu spray tan, is denying that she and Efron are an item. She said via Twitter on Tuesday:

"Don't believe all pictures. ... I had such a great birthday party with my friends, Family, and BOYFRIEND Scott. I will not let stupid rumors ruin all the fun we had! Xoxo"

Check out X17's exclusive video below to see Zac and Ashley embracing at her party, where they sipped Heineken Light and VnC Cocktails. The two have known each other for years ... what do you think of their interaction?

After the jump, see a pic that Ashley Tweeted of her and her boyfriend at the party.