Nobody better mess with Swifties while Taylor Swift is around.
Fan-recorded clips of Taylor performing in Philadelphia on Saturday night show Taylor calling out a security guard for mistreating a fan while singing "Bad Blood."
"She's fine," Taylor is seen saying while pointing off stage. "She wasn't doing anything. Hey, stop! Stop."
It wasn't clear what Taylor was upset about, but one fan tweeted, "taylor was yelling at a security guard because they fully kept putting their hands on us to physically push us off of the barricade instead of just telling us to move."