Hordes of fans are expected to descend on the 90,000-capacity Wembley Stadium on Friday to see Swift perform.
The artist’s Eras tour has just finished a run of shows in Edinburgh, Liverpool and Cardiff.
Swift is playing 10 more dates in the UK and Ireland including this weekend’s London shows.
The singer will then head to Dublin before returning to London in August for another set of dates at Wembley.
On Wednesday during a performance in Cardiff she delighted fans by speaking Welsh.
The US pop star kicked off her performance at the Principality Stadium in Wales with a number of hit songs including Cruel Summer, before turning her hand to the Welsh language.
“Shwmae,” Swift told the crowd in videos circulating on social media, which means hello in English.
“Croeso i daith Eras,” she added, which means: “Welcome to the Eras tour.”
Fans flocked to a London pub
Upon the release of Swift’s new album in April fans flocked to a London pub after it was mentioned in the lyrics of a song.
In The Tortured Poet’s Department she namechecks The Black Dog in Vauxhall, south-west London.
The pub is mentioned as “some bar” on a track called The Black Dog. It became so crowded with “Swifties” that staff had to turn away customers.
Fans believe the singer wrote some of her lyrics about her former partners Matty Healy, the musician, and Joe Alwyn, the actor.
She is now in a relationship with Travis Kelce, an NFL American football player.
Swift is set to play in London a day after two women were arrested after Just Stop Oil attempted to spray her private jet at Stansted Airport with orange paint – but failed to find it.
It is understood the two climate activists attempted to target Swift’s jet, claiming they knew its tail number, but weren’t able to locate it. Instead, they sprayed two jets at random using fire extinguishers filled with orange paint. Swift had landed at the private terminal at the Essex airport hours earlier, Just Stop Oil said.