“Everyone knew every word, and she KILLED IT!!” Swift gushed on Instagram. The pair traded verses of the song while surrounded by a troupe of shirtless male dancers. Watch footage of the performance below.
— Taylor Swift (@taylorswift13) October 25, 2015
Tove has been touring North America behind her 2014 debut album, Queen of the Clouds, and has played such festivals as Firefly, Bonnaroo and Lollapalooza. She’ll also appear at numerous upcoming holiday radio concerts around the country.
“UNREAL. @taylorswift I can’t thank you and your fans enough for this night. Playing for 56,000 people (!!!!) was one of the most incredible experiences of my life. I will never forget this,” Tove wrote on Instagram.
In recent weeks, Swift has been joined on stage by such singers as Miranda Lambert, Ellie Goulding, Charli XCX and more. Following her last U.S. date on Oct. 31, Swift will head overseas for concerts in China and Australia through mid-December.