The apparent new romance comes just weeks after the Anti-Hero singer and her boyfriend Joe Alwyn called it quits.
Taylor, 33, took the stage in the Music City to perform to an eager crowd of fans and some familiar faces.
Swifties spotted the Grammy winner’s rumored boyfriend, 1975 frontman Matty, 34, taking the show in from a private gated area.
He kept it casual in a blue flannel shirt over a black T-shirt.
He was surrounded by a handful of other people, including Julien Baker and Gracie Abrams.
A photo of the musician was tweeted by a fan-run Twitter account with the caption: “MATTY HEALY at #NashvilleTSTheErasTour #TSTheErasTour.”
The sighting came amid reports that the two were preparing to go public at the concert.
Taylor and Matty previously dated but only for a short time.
Prior to their romantic reunion, the All Too Well singer had been in a six-year relationship with Joe, 32.
Her ex has also reportedly moved on and was most recently linked to Scottish actress Emma Laird.
The pair met while filming The Brutalist in Hungary.
FANS REACT
After the photo of Matty in the audience at Taylor’s show surfaced on Twitter, the social media site was flooded with fan reaction.
One fan tweeted: “LMAOOOOOOOOOO, either this is real or Taylor and matty are doing the funniest thing they could possibly do at this moment in time.”
Another wrote on Twitter: “this taylor and matty thing cannot be serious.”
A third fan tweeted: “why am i sweating thinking about taylor and matty I MISS WHEN THIS WAS A JOKE.”
Someone else speculated: “i feel like Taylor and Matty know all about the rumors so they’re playing with us.”
Another tweet about the rumored relationship read: “taylor and matty dating is something I’d never believe but imagine the songs they could write about each other after their break up.”
A sixth Twitter user suggested: “did it ever occur to you guys that taylor and matty might just be friends and he’ll just be a special guest like she was earlier this year???”
For all the critics, there were plenty of supporters of the relationship as well.
One wrote: “I’m so here for it honestly.”
SO IN LOVE?
A source close to Taylor told The U.S. Sun exclusively: “She and Matty are madly in love. It’s super-early days, but it feels right. They first dated, very briefly, almost ten years ago but timings just didn’t work out.
“Taylor and Joe actually split up back in February, so there was absolutely no crossover.
“Both Matty and Taylor have been touring over the past few weeks, so it’s been a lot of Face-Timing and texting but she cannot wait to see him again.
“But as two international megastars, they understand the pressures of one another’s jobs better than anyone, and are incredibly supportive of their respective careers.
“They are both massively proud and excited about this relationship and, unlike Taylor’s last one — which was very much kept out of the spotlight, deliberately — she wants to ‘own’ this romance, and not hide it away.
“Taylor just wants to live her life, and be happy. She’s told pals Matty is flying to Nashville over the weekend to support her on the next leg of her tour.”
The insider added: “Taylor’s pals are absolutely delighted because they reckon she and Matty are a brilliant match.
“Obviously putting two such famous names together means a lot of fan attention and a LOT of eyeballs on the pair.
“But Matty and Taylor are sensible enough, and fame-equipped enough, to handle it. Both of them have been — often unfairly — dragged through the ringer on a global scale.
“But crucially, they’re both brilliant, smart, kind people and, quite simply, have each other’s backs.”
DROPPING CLUES
Fans have been keeping a close eye on the Grammy winner and British crooner for some time.
Taylor is known to drop Easter eggs in her videos and some speculate that she’s been doing the same in her personal life.
Swifties have noticed some telling details popping up, convenient timing, and other “clues” that the singers are more than just friends.
In January, Taylor surprised fans with an appearance on stage at the London O2 during the first night of The 1975’s At Their Very Best tour.
She performed The City and Anti-Hero during the show and was hailed as “The Queen” by Matty.
Taylor was then photographed backstage with the singer’s famous mom Denise Welch, which set social media ablaze.
The buzz intensified after details of her split from Joe were leaked on April 8, which also happens to be Matty’s birthday.
Fans suggested the dirt was a “gift” to her new man.
Last month the Sex singer appeared to reference Taylor’s hugely successful Eras Tour while discussing his decision to quit all social media.
Matty explained at the time: “Everything happens in eras.
“The 1975 is a very eras band. The era of me being a f***ing a**hole is coming to an end.”
Taylor and Matty have a long history.
They briefly dated back in 2014 – the same year Taylor was seen wearing a 1975 T-shirt to one of their gigs.
In November 2022, Matty confirmed that his band teamed up with Taylor for a song on her album Midnights.
The track did not make the final cut, however, so fans never got to hear it.