Taylor Swift is taking the Chiefs Super Bowl Champions hat on tour ❤️💛. (Photos )

She traded her crown for a baseball cap.

Taylor Swift had plenty to celebrate Sunday night when boyfriend Travis Kelce’s Kansas City Chiefs won against the Baltimore Ravens — and she even stole his AFC championship hat ($40) for the post-game fun.

The “Long Live” singer, 34, wore Kelce’s hat in some photos shared by the 34-year-old tight end’s best friend, Aric Jones, on Instagram Monday.

Swift — who wore plenty of Chiefs-themed jewelry and a red sweater from Gigi Hadid’s Guest in Residence line at the championship game — tips her head down to show her beau’s hat off to the camera in one pic, pinching the brim and showing off her sparkly nails in the process.

She kept the hat on as she crouched down on the ground in a joyous group pic with Jones, Cara Delevingne, Kelce’s parents, Donna and Ed Kelce and plenty of other friends, also donning the cap in a sweet snap with pal Keleigh Teller on her Instagram Story.