Vanessa Hudgens and Zac Efron break up

“They were together for so long. It just ran its course,” a source cited by Usmagazine.com said.

Efron, 23, and Hudgens, who turns 22 on Dec. 14, met in 2005 while shooting the first chapter of the franchise “High School Musical.” They began dating about two years later.

“It’s nothing dramatic. There’s no third party involved,” added the informant.

In an interview published in the September issue of Details magazine, Efron denied that his love affair with Hudgens was a publicity stunt.”That’s just [expletive] insane… It would have been so much easier to call it off a long time ago.”