Kansas City, Missouri - reminded a security guard why manners matter at Sunday's Kansas City Chiefs !
While supporting her boyfriend as the Chiefs took on the Denver Broncos, the Karma hitmaker wasn't feeling one security guard's attitude.
T-Swift to the event a two-piece red-and-black checked that featured a black corset, knee-high boots, and a matching handbag.
As the Reputation singer Arrowhead Stadium with her parents Andrea and Scott Swift, a guard yelled at the paparazzi, "Guys, stay back."
But Taylor intervened and reminded the guard, "Stay back, please."
The entertainer's lesson on politeness was one of the many highlights of the day as the Chiefs went on to beat the Broncos with a score of 14 to 16.
Meanwhile, Taylor had another huge accomplishment across the pond at the .
Despite her absence, the Don't Blame Me singer won big as she took home the awards for best artist, best live, best US act, and best video for her Fortnight music video that featured Post Malone.