Chris Willman Senior Music Writer and Chief Music Critic A Taylor Swift fan whose front-row zealotry caught the constant attention of a security guard — whose response then caught the attention of Swift herself — has spoken out on what happened during and after the confrontation during “Bad Blood” at a Philadelphia show. Kelly Kelly, a third-grade teacher from Baltimore, was attending the show with sister Kirstin Birmingham and two friends, all with first-row seats in front of the ramp that extended out into the Lincoln Financial Field audience. Kelly told ABC’s “Good Morning, America” and the Daily Mail about what transpired with security, and Swift’s reaction, on Saturday night — leading to their getting free tickets to come back for the third and final Philly concert Sunday night.