On Saturday night (May 13), during a Philadelphia stop on her Eras Tour, Taylor Swift appeared to defend a fan from an alleged issue with a security guard, TMZ and Vulture report. In multiple videos posted to social media, Swift can be seen yelling into the crowd at Lincoln Financial Field between lines of her 1989 song “Bad Blood.” “She’s fine,” Swift said at one point, followed by “she wasn’t doing anything!” and “hey, stop!” Pitchfork has reached out to representatives for Swift and Lincoln Financial Field for further information and comment.

In addition to videos of the concert itself, multiple clips of the scene outside Lincoln Financial Field are circulating online, showing throngs of fans singing Swift’s songs in unison. Last night’s show was Swift’s second of three Philadelphia performances during the Eras Tour, which will stretch into August. She is set to play Lincoln Financial Field again tonight before heading to Foxborough, Massachusetts tomorrow.

Earlier this month during her first stop in Nashville, Swift brought out Phoebe Bridgers for a live rendition of “Nothing New” from Red (Taylor’s Version). Both artists sang in unison while playing acoustic guitar.

Read “Here’s What Happened at Taylor Swift’s Eras Tour Opener: Setlist and More.”