The “Lover” singer, 33, resumed the South American leg of her Eras Tour Sunday night at Estadio Nilton Santos in Rio de Janeiro, Brazil.

On Saturday, Swift canceled that night’s show hours before she was set to take the stage due to unusually “extreme heat” in the city. Friday’s temperature topped 102 F, with humidity at more than 70%, a combination that made it feel as if it was actually 138 F, according to PBS.org.

In an Instagram post, she wrote a hand-written note that said: “I’m writing this from my dressing room in the stadium,” Swift shared to her Instagram Story in a hand-written note Saturday. “The decision has been made to postpone tonight’s show due to the extreme temperatures in Rio.”

She added, “The safety and well being of my fans, fellow performers and crew has to and will always come first.”

Later, event organizer Time for Fun revealed in a statement that the show is rescheduled to take place Monday, with all tickets to Saturday’s performance remaining valid for the new date.

The postponement came after the Grammy winner confirmed that a fan died ahead of Friday’s concert. Time for Fun shared in a post on X, formerly Twitter, that 23-year-old Ana Clara Benevides Machado had died after feeling unwell at the venue.

According to the post, which was shared in Portuguese, first responders attended to Benevides Machado, and she died after being transferred to the local Salgado Filho Hospital.

“I can’t believe I’m writing these words, but it’s with a shattered heart that I say we lost a fan earlier tonight before my show,” Swift wrote on Friday.

“I can’t even tell you how devastated I am by this,” she added. “There’s very little information I have other than the fact she was so incredibly beautiful and far too young.”

Swift, who wrote that she felt the loss “deeply,” revealed that she was “overwhelmed by grief when I even try to talk about it.”

“I want to say now I feel this loss deeply and my heart goes out to her family and friends,” she wrote. “This is the last thing I ever thought would happen when we decided to bring this tour to Brazil.”

Throughout that night, Swift was caught multiple times on camera asking for stadium staff to provide fans with water. At one point, she stopped in the middle of her song “All Too Well” when she saw people in the audience being affected by the heat, and would toss them bottles of water.

Temperatures finally cooled down on Sunday after days of heat topping 100 degrees paired with dangerously high levels of humidity — a record for mid-November in Rio.