The pop superstar, 33, was filmed walking off stage in a clip shared on social media and embracing the American football player, 34.

Their loved-up clinch sparked raucous screams from Taylor fans who spotted the couple's intense moment.

The big kiss came after a show in which the Bad Blood singer included cheeky nods to their whirlwind romance during her Eras tour stop in the Argentinian capital.

While performing her song Willow, Taylor sang to Travis directly and mouthed the words "That's my man". She also changed the lyrics to her song Karma to sing, "Karma is the guy on the Chiefs coming straight home to me," a reference to Travis' team, the Kansas City Chiefs.

Before the gig, Kelce had also met Taylor's dad Scott. Despite being a fan of the Chiefs' rivals, the Philadelphia Eagles - who played Kansas City in February's Super Bowl - Scott was pictured wearing a Chiefs lanyard