Taylor Swift fans come up with theories over CTFL jacket she wore to boyfriend Travis Kelce's game

Taylor Swift fans are at it again - speculating and looking for a deeper meaning after the pop star was spotted heading to Travis Kelce’s football game.

Swifties take a lil bit of interest in the star outside of the music studio, to put it mildly.

Her relationship with NFL Kansas City Chiefs' tight end Travis Kelce has certainly taken the world by storm and fans simply fawn over the adorable couple.

The latest theories involving Swift, however, surround what she was wearing as she attended the Kansas City Chiefs vs Buffalo Bills football game on Sunday (January 21).

As expected, fans pulled out their phones to catch a glimpse of the star as she arrived at the stadium.

Swift was seen wearing a red beanie hat and a thick white jacket with a red star on it, but fans were perplexed with one feature of the outfit.

The jacket had the letters ‘CTFL’ on the arm and Swifties want answers.

Was this a subtle nod to her beau Kelce? Football? Swift’s hidden love of initialisms?

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Fans have taken to social media to share their thoughts on the meaning.

“I saw someone say 'can travis fight lol' and that’s been my favorite one so far,” one user joked.

“Guys don’t worry I figured out what CTFL means ‘Certified Tester Foundation Level’, one of the most popular credentials in software testing,” another joked.

“Can Travis' football (team) lose? She wants to free up her weekends,” a third commented.

Well, Swift didn’t seem to give any indication for what it could mean but the internet sleuths of the world seemed to come to a solid enough answer.

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The jacket wasn’t custom made, as some fans thought, but from retailer Gant and retails for $1,800.

In addition to this, one of the theories caught on is that CTFL stands for Central Texas Football League from when the Kansas City Chiefs used to be in Dallas. Not a bad theory but not quite airtight.

Others remarked the jacket was part of a collaboration between singer Kilo Kish and Gant. The CT stands for Connecticut, as that is where the brand is from, and FL stands for Florida as that is where Kilo is from.

The Chiefs ultimately came out on top, taking them one step closer to the Super Bowl, with Kelce even making a touching tribute to Swift during his touchdown celebration.