Looks like Taylor Swift doesn't think it's enough just to be Travis Kelce's "Instagram Official."

Videos of Swift's performance at London's Wembley Stadium on Sunday night, during her Eras tour, have been shared on social media, suggesting she's taken it a step further.

The football player's breakthrough came during Swift's set list change during the "Tortured Poets Department" section. He received a standing ovation when he initially took the stage with Swift in his arms, dressed in a black tailcoat and top hat.

Using a hand fan, Kelce kept herself warm, danced, and flashed a smile at Swift while her dancers helped her change her outfit live.

Swift was spotted kissing Kelce before turning around to sing "I Can Do It With A Broken Heart."

Swift added the act to her May performance after changing her Era Tour schedule to include songs from her most recent album, "The Tortured Poets Department," which was released in April.

Swift shared a snapshot of herself with Prince William and their two children, Prince George and Princess Charlotte, with Kelce, celebrating the Prince of Wales' 42nd birthday on Saturday.

The photo marks her "Instagram Official" post and is the first photo of Kelce that Swift has posted on her main Instagram page.

In September 2023, Swift and the three-time Super Bowl champion were initially romantically linked.

Kicking off in the United States in March 2023, Swift's Eras tour is set to end in December. She is scheduled to perform in Dublin, Ireland, next weekend, and will make five more appearances at Wembley Stadium in August.

Kelce still has a high chance of participating in Swift's big European tour, as the Chiefs' training camp doesn't start for about a month.

Given the success of his Sunday cameo, he will always be welcome back.