Taylor Swift’s last song was still ringing in the ears of thousands of fans at the Tokyo Dome on Saturday night when the singer rushed to a private jet at Haneda airport, presumably embarking on an intensely scrutinized journey to see her boyfriend, NFL star Travis Kelce, play in the Super Bowl in Las Vegas.

The prospect of this race against time, crossing nine time zones and the international date line, has fired imaginations, and speculation, for weeks.

At Saturday night’s concert, there was plenty of evidence of the unique cultural phenomenon that is the Swift-Kelce relationship, a nexus of professional football, and the huge star power of Swift.

In addition to sequined dresses celebrating Swift in the packed Tokyo Dome, there were Travis Kelce jerseys hats, and other gear celebrating his team, the Kansas City Chiefs. Some in Tokyo spent thousands of dollars to attend the pop superstar’s concerts this week.

To call the worldwide scrutiny of Swift’s travels intense is an understatement.

The planet-warming carbon emissions of her globe-trotting travels have been criticized.

Officials have weighed in on her ability to park her jet in Las Vegas airports.

Even Japanese diplomats have gotten into the act.

The Japanese Embassy in Washington posted on social media that she could make the Super Bowl in time, including in their statement three Swift song titles – “Speak Now”, “Fearless” and “Red.”