Taylor Swift intervened with an off-stage issue during her performance of "Bad Blood" on Saturday in Philadelphia.
The incident was caught on a fan-recorded clip, which has since gone viral.
In the clip, Taylor points off-stage and asks security to stop what they were doing.
It's unclear what caused the disruption, but fans reported aggressive security.
A TikTok user claimed that a security guard was "harassing" her group.
Taylor noticed the situation and had the security guard escorted out.
The TikTok user and her group were offered free tickets for the next night.
The incident appears to have been resolved peacefully and without incident.
Taylor Swift showed concern for her fans' safety and well-being.