Dressed in a top hat and tails, The Kansas City Chiefs player joined the singer on stage for I Can Do It With a Broken Heart as a dancer.
During the routine, Kelce carried Swift on stage, and also applied make-up to her face with a brush.
It’s the first time Kelce has joined her on stage during the Eras tour.
Kelce looked happy to be performing, and many fans shared a video of the athlete kicking his heels while dancing.
The appearance shocked and delighted fans, with many expressing their disbelief on social media.
