After getting to see the gorgeous actor go shirtless at the MTV Movie Awards it looks like we have some sad news to deliver to you guys. Zac Efron is officially off the market and is dating his "Neighbors" costar Halston Sage!

According to E! News, a source close to the couple revealed, "They are definitely an item," adding, "They were seeing each other a bit during filming of their movie together and ever since he went to rehab they got a lot closer. Her friends love him and say he is so sweet. He's really good to her."

The new couple was spotted earlier this month sitting courtside as the happily cheered on the Los Angeles Lakers at the Staples Center.

Less than a week after photos of Efron and the blonde at the basketball game surfaced, news broke that Sage and "Glee" season 5 star Chord Overstreet split.

Before hooking up with the hot "That Awkward Moment" star and dating Overstreet, Halston Sage was romantically linked to "Big Time Rush" star and "Dancing with the Stars" contestant James Maslow. Meanwhile Efron has dated the likes of Vanessa Hudgens and Lily Collins.

Zac Efron and his new girlfriend have yet to make a red carpet appearance together as the rumored drug using actor took LaQuishe Wright, social media manager for "Neighbors" as his date to the 2014 MTV Movie Awards.

Even without the gorgeous actress by his side The "Parkland" actor garnered a lot of attention at the awards ceremony all by himself.

Not only did he kiss a random girl from the audience but he also whipped out is toned muscles courtesy of Rita Ora who ripped open his shirt and exposed the actor.

 Efron later took to Twitter to thank Calvin Harris' girlfriend for the push he needed to flash the audience his awesome body.

He tweeted, "@RitaOra Thanks for such a bold move. I don't know if I could've done that on my own."