Pop star Taylor Swift reportedly used facial recognition software at a Los Angeles concert venue to scan the crowd for any of her known stalkers.

A display inside a kiosk at her Rose Bowl Show in May was equipped with a facial-recognition camera, Rolling Stone reported Monday.

{mosads}As unsuspecting concertgoers stopped to watch a montage of footage from Swift’s rehearsals, the camera was scanning the details of the viewers’ faces.

Mike Downing, chief security officer of Oak View Group, an advisory board for concert venues, told the outlet that he was invited by the company to witness a demo of the system. He did not say which company was behind the software. 

“Everybody who went by would stop and stare at it, and the software would start working,” Downing said. 

The images picked up by the facial-recognition camera were then transferred to a “command post” in Nashville, Tenn., Swift’s home state, to check a database of her known stalkers.

The Hill has reached out to Swift’s representatives for comment.

The “Look What You Made Me Do” singer has had several encounters with alleged stalkers throughout her career.

Frank Andrew Hoover allegedly stalked the musician across Texas and was arrested after attending an Austin show in 2016 despite a protective order against him. 

Hoover allegedly sent threatening emails to Swift’s father, saying he would “end” her whole family, TMZ reported earlier this year. 

He was sentenced to 10 years probation after pleading guilty to violating the protection order and was instructed to wear a GPS monitoring device.