If only Selena Gomez had Justin Bieber’s man-child muscles to keep her warm and safe Sunday night.

Upon arriving to her Calabasas, Calif., home on June 29, the 21-year-old brunette beauty sensed something was amiss, according to a new report.

The former Disney darling alerted 911 after she saw her back door wide open.

The cops hurried to the scene, but found no one inside the property and no sign of forced entry.

It’s no surprise the Biebs’ sometimes girl is frightened, as she was a victim of a home intrusion back in 2011 when a stalker made his way around her home. He got arrested, and immediately went back to her lavish estate after his release.

He was arrested again, but was released in a matter of days. Most recently, he was admitted to a mental health facility on June 20 for a mandatory stay of at least 30 days.

Regardless, this is a very scary situation — and these 13 celebs below are all too familiar with the feeling!