AceShowbiz - During one of her "Eras" tour stops in Stockholm, Sweden, Swifties were quick to spot a peculiar mark on Taylor Swift's neck, and their reactions were nothing short of intense. The singer, dressed in a blue dress while performing her "Evermore" era song "Champagne Problems," revealed a noticeable red mark on her neck while seated at the piano.

The discovery sent Swifties into a frenzy, with many speculating that the mark might be a hickey from her current beau, NFL star Travis Kelce.

A fan shared a clip zooming into the right side of Swift's neck, setting the video to the tune of her song "So High School," with an overlay text that read, "Someone's feeling 'So High School' with a hickey." The top-liked comment on the clip humorously pondered, "Flat iron burn or hickey and in her idgaf era?"

Swift's fans couldn't contain their excitement, with replies like, "WHEN I SAY I DROPPED MY PHONE SOMEONE PICK UP MY JAW," and "MOTHER WHATTT." One enthusiastic fan even wrote, "DAYUM GORLY!!! LOVIN LOUDLY AND IM HERE FOR IT."

If the mark is indeed a hickey, it isn't difficult to guess how it got there. Taylor and Travis recently enjoyed a romantic getaway in Lake Como, Italy, shortly after he caught her final show in Paris. The couple was spotted kissing and cuddling on a boat ride before a romantic dinner, reminiscent of a high school prom king and queen escapade.

Following their brief holiday, the pair went their separate ways - Swift jetted off to Sweden to continue her whirlwind tour, while Kelce returned to Kansas City to host the Kelce Jam concert, featuring performances by Lil Wayne and 2 Chainz.

This isn't the first time fans have speculated about love marks in the Swift-Kelce relationship. Swifties previously lost their minds over a photo of Kelce during a Kansas City Chiefs game against the New England Patriots in December, where a small red mark on his neck sparked hickey rumors.

As Taylor wraps up her shows in Sweden before moving on to Portugal, fans eagerly await to see if Kelce will join her on the road again. With many more tour dates spanning Spain, the United Kingdom, Switzerland, Germany, and beyond, Swifties' detective skills will no doubt be on high alert for the next love mark sighting.