It’s really happening.

Eagles center Jason Kelce is convinced that his younger brother, Chiefs tight end Travis Kelce, is dating Taylor Swift.

Jason explained that he believes the romance rumors between the two are “100 percent true,” during an appearance on the “DeCamara & Ritchie” show on Audacy’s SportsRadio 94 WIP.

“It’s hard to answer because I don’t really know a lot about Travis’ love life,” Jason said. “I try to keep his business kind of his business, and stay out of that world.

“But having said that, I think he’s doing great and I think it’s all 100 percent true.”

Jason added that he was “caught off guard” when he was asked about his brother and Swift during the postgame interview following Philadelphia’s Thursday Night Football” victory over the Vikings.

“I’ve seen these rumors, I cannot comment,” Jason said after being pressed by former tight end Tony Gonzalez.

The Chiefs’ star was first linked to the superstar musician when a recent report from The Messenger claimed the pair have “been quietly hanging out” recently.

Before that, Travis revealed his plan to give Swift a friendship bracelet with his number on it during an episode of the brothers’ “New Heights” podcast.

Swift has yet to address the reports publicly.