The pop superstar had only performed the Calvin Harris & Rihanna song that she co-wrote twice before: once in 2016 and once in 2017.
"This is the very first time I've acknowledged to myself and admitted that this tour is going to end in December," Swift tells Liverpool crowd during 100th show.
The star also impressed concertgoers by communicating to security in French.
"I can’t thank you all enough," the pop star added.
The couple attended with their three daughters: James, Inez and Betty.
The Haim sisters were also in attendance.
"I chose artists whose music I love listening to," the pop superstar wrote.
The city will also unveil 11 art installations inspired by the pop star.
The pop star has handled a number of hiccups like a pro on her year-long trek.
The pop star also promised to return to the country for future performances.
