Travis Kelce says he was downright floored when he heard Taylor Swift give him a shout-out with a lyric change last week ... admitting the now-viral moment in Buenos Aires "blew me away."
The NFL star went in-depth about his trip to Argentina to see his new girlfriend on this week's episode of "New Heights" ... saying that because it was all "public knowledge," he was down to spill some of the beans on how his bye week vacation went.
The Chiefs tight end told his brother, Jason, that he had a "whole bunch of fun" on the excursion .