This was Swift’s fifth time in the stands supporting the Chiefs since her romance with Kelce went public.

Kansas City was 4-0 across her first four matches, leading some fans to joke that she was the team’s new lucky charm. But the pop star’s perfect run was ended on Sunday.

Travis Kelce and the Kansas City Chiefs were beaten by the Green Bay Packers on Sunday night

Taylor Swift – seen here alongside Brittany Mahomes (c) – was in the stands at Lambeau Field

Patrick Mahomes was unable to inspire Kansas City to a late comeback in Sunday night’s game

Sunday was the fifth time Swift has been in the stands and the first time she has seen a loss

Earlier, Swift boarded a jet with Brittany Mahomes as the pop star headed to Lambeau Field

Swift arrived at the airport alongside her security detail ahead of the flight on Sunday

The Chiefs suffered their fourth defeat of the NFL season, falling to a 27-19 defeat by the Packers at Lambeau Field.

But it was not without some late drama as Patrick Mahomes and Co sought to snatch victory from the jaws of defeat on the final play.

Kelce was at the heart of it – the tight end was among a scrum of players in the end zone as Mahomes threw a Hail Mary in search of the touchdown Kansas City needed to possibly tie the game.

Replays appeared to show Kelce was pushed in the back by Packers defender Jonathan Owens – the husband of Simone Biles – but none of the officials felt it warranted a flag, meaning Green Bay’s victory was confirmed.

The build-up to the game was dominated by the possible appearance of Swift in the stands and on Sunday afternnon, she was seen boarding a jet bound for Green Bay.

Kelce was involved in late drama after it appeared he was pushed on the game’s final play

Keisean Nixon celebrates after Green Bay’s 27-19 victory was confirmed against the Chiefs

Swift and Mahomes braved the freezing conditions to be in Wisconsin on Sunday night

Packers quarterback Jordan Love laps up the applause of the crowd at Lambeau Field

Brittany wore a black and red jacket with her husband’s No 15 emblazoned on the back

Exclusive photos for DailyMail.com showed Brittany Mahomes – wife of Patrick – was seen hopping out of a black Lamborghini SUV and on to Swift’s Dassault Falcon 7x, minutes before the pop icon’s arrival at Charles B. Wheeler Downtown Airport.

Swift arrived in a black GMC with her security team in tow. As she boarded the jet, her minders put up umbrellas to block any prying eyes.

Before long, the pop sensation walked into Lambeau Field alongside Mahomes. The pair embraced before going their separate ways.

Swift was sporting the Chiefs’ colors – wearing a red overcoat – while Brittany’s red letterman’s jacket had her husband’s No. 15 emblazoned on it.

The duo were later reunited in a suite at Lambeau Field, where they watched the Packers secure their fourth victory in five matches.

Kelce amassed 81 yards from four receptions – his fourth best return of the season.  But the defending Super Bowl champions have now fallen behind three other teams in the race for the AFC’s top playoff seed.

The Chiefs started slowly for a second straight week before falling to their third defeat in five games.