Report: Hudgens and Efron break up

LOS ANGELES, Dec. 13 (UPI) -- Hollywood couple Vanessa Hudgens and Zac Efron, who starred in the "High School Musical" franchise, have broken up, sources told E! News.

Efron, 23, and Hudgens, 22, have been going out since they were teenagers.

"It's nothing dramatic," one insider told E! "There's no third party involved."

"They were together for so long. It just ran its course," another source said.