Zac Efron And Vanessa Hudgens Reportedly Split!

It's been a year of surprising celebrity splits (hello, Courteney Cox and David Arquette!), but this latest breakup might be the most jaw-dropping of 2010: E! Online is reporting that long-time couple Zac Efron and Vanessa Hudgens have parted ways!

"They were together for so long. It just ran its course," a source told E! Indeed, the two, who met on the set of "High School Musical," have been dating since 2006. The couple have been famously tight-lipped about their relationship, however, in the August issue of Details magazine, Zac insisted their romance was "real," denying claims it was a showmance orchestrated by Disney.

Despite his affection for Vanessa, Zac has always been clear that if he ever did get married, that day was a long time coming. "I'm definitely not getting married," Zac told GQ in 2009. "In this business, you're either getting married or they want you to be pregnant. I'm not getting married until I'm 40. If ever. The thought never crossed my mind."

Whether conflicting opinions about marriage or a general growing apart are to blame for the split, it's hard to deny first loves don't usually last—especially ones began at such a young age. Yet, these two did seem like they could go the distance, didn't they? We wish Zac and Vanessa all the best!

Are you completely shocked by Zac and Vanessa's split? Tell us in the comments and on Twitter. Don't forget to follow editor Amy Wilkinson, too!