The 25-year-old singer is known for surprising fans with unexpected guests on her 1989 World Tour. Her two-day tour stop in Chicago was no different.
Swift's shows in the Windy City became a runway on Sunday, when she strutted her stuff with models Lily Donaldson and Andreja Pejic at Soldier Field.
They "SHUT DOWN the runway. Crowd went insane!!" Swift wrote to her more than 38 million Instagram followers alongside a photo of herself with the models.
As if that weren't enough, Swift spoiled fans with another special guest: Sam Hunt.
Hunt, whom Swift described as "Such a star," performed his recent single "Take Your Time" alongside the "Blank Space" singer.
She pulled out all the stops on Saturday too, inviting Empire star Serayah and Andy Grammer to perform with her on stage.
Serayah joined Swift in singing "Style" in front of a sold-out crowd. The actress took to Instagram later, where she posted a video clip and described the performance as "epic."
Grammer and Swift performed his latest single, "Honey, I'm Good," as the crowd jumped and clapped along.
The "Bad Blood" singer uploaded a photo of the performance to Instagram, writing, "Everrrybody knew the words and it was SO MUCH FUN."
The five surprise guests are the latest stars to join Swift's stage squad.
Just when fans begin to think Swift has no more tricks up her sleeve, the megastar continues to prove that she hasn't run out of surprises.