WATCH: Fans go wild as Travis Kelce joins Taylor Swift on stage at 'The Eras Tour'

First, they became Instagram official, now she's flaunting him onstage!

After posting a backstage selfie with the Royal family and her boyfriend Travis Kelce last Saturday, Taylor Swift surprised her fans with a special guest on stage at "The Eras Tour" in London.

During the "Tortured Poets Department" segment, Travis emerged onstage in a top hat and black tuxedo. He charmingly stole the spotlight, carrying Taylor in his arms before putting her down on a red couch.

The Kansas City Chiefs player then whipped out a hand fan and danced around the stage while Taylor's dancers helped the latter get a costume change. He also "touched up" Taylor's makeup with a makeup brush.

Before she sang I Can Do It With a Broken Heart, Taylor was seen blowing a kiss to her athlete boyfriend.

This was Travis's first time being part of the concert, having previously been a regular fan in the audience.

Last Saturday, Taylor shared a photo of herself with Travis, Prince William, and his two children, Prince George and Princess Charlotte, who attended her concert to celebrate the Prince of Wales’ 42nd birthday.

After sparking dating rumors in September 2023, Taylor and Travis solidified their romance by holding hands at a Saturday Night Live afterparty the following month. Since then, Travis has been a regular at The Eras Tour, and the singer has been spotted watching the Chiefs games.