 A Taylor Swift fan has posted video to TikTok showing a male guard tailing the singer each time she moves positions across the stage at a recent concert in Zurich. His eyes firmly fixed on the massive crowd as he follows in line just below the stage, suggesting he has her choreography and direction memorized or he's being fed information through an earpiece. One fan explains in an ex-post, Tay's safety is paramount. Debra Rodriguez, CBS News.