Are they or aren't they?!

We caught Selena Gomez heading into the recording studio in Beverly Hills yesterday, and we tried to ask her about the rumors she's secretly dating Zac Efron, but she didn't want to give us an answer. Hey, she didn't say no!

Apparently, SG and the High School Musical star have been getting close in recent months, but pals fear they'd be a bad match, as they both have personal issues that they struggle with.

"There’s definitely an attraction. They've been hanging out and talking, but the concern lies in their highly sensitive personalities. A lot of people think their chemistry is a recipe for disaster. Both of them tend to go off the rails when they’re not living a fully focused, hyper-regimented lifestyle with a team of helpers keeping them on track," a source dished to Radar.

The "Come & Get" songstress has been to rehab multiple times to deal with anxiety and depression, while the A-list actor has done a couple stints of his own for drug abuse.

We know he's dating Lily Collins, but we think Selena and Noah Centineo would be a cute couple!