Just In: Patrick Mahomes says Taylor Swift is now drawing up football plays — and the Chiefs may just run one in a game…See details.

The pop megastar has gotten so into football since she started dating Travis Kelce, she’s toyed around with drawing up plays, QB and three-time Super Bowl MVP Mahomes said.

She’s up in the bleachers cheering on her boyfriend — and possibly signaling in plays to coach Andy Reid?

Taylor Swift has become such a football fan that the pop megastar has been trying her hand on drawing up plays, Kansas City Chiefs quarterback Patrick Mahomes said.

Swift’s romance with K.C. tight end Travis Kelce has led to an odd Venn diagram of football junkies — glued to TV sets for days at a time each autumn — crossing paths with music lovers — who consider sequin to be normal daily wear.

“I think it’s been cool to see the girls and the women that have really embraced watching football,” the three-time Super Bowl MVP Mahomes told NBC Sports in an interview posted on Thursday.

I know being a girl dad, how cool it is for me to see like these little girls — these daughters — and how much they’re loving to spend time with their dad, watching football,” Mahomes said.

“And then meeting Taylor, realizing how genuine and cool she is,” he continued. “I think that’s been special to me because she’s, like you said, the most famous person in the world — she could not be.”

Swift’s fandom has even taken her from treble and base clefs on the music sheet to Xs and Os on the chalkboard.

“And she’s really interested in football, and she asks a lot of great questions. Started drawing up plays,” Mahomes added. “We might have to put one in.”

Reid, the Chiefs’ veteran coach, is among the more irreverent personalities in his field, breaking the mold of stern control-oriented leaders such as Bill Belichick or Bill Parcells.

The Chiefs beat the San Francisco 49ers, 25-22, in overtime at this year’s Super Bowl when Mahomes hooked up with Mecole Hardman for a 3-yard, walkoff TD toss. The play was affectionately named “corn dog.”