WASHINGTON, United States (AFP) — Pop superstar Taylor Swift and American football player Travis Kelce announced their engagement on Tuesday, setting the stage for a high-profile wedding for one of the world’s biggest celebrity couples.

A joint post on their Instagram pages showed pictures of Kelce down on one knee making his marriage proposal in a flower-laden garden, and then Swift displaying a large diamond ring.

“Your English teacher and gym teacher are getting married,” the pair, both aged 35, joked in a caption.

The couple first went public with their relationship in 2023 and have often been seen together at her hugely popular concerts and at his NFL games playing for the Kansas City Chiefs.

Last year, Swift closed her acclaimed $2 billion Eras tour that shattered records and made her the world’s leading music star as she performed 149 three-hour shows around the globe.

Tickets sold for exorbitant prices and drew in millions of fans, with many who didn’t get in willing to sing along outside venues.

Swifties — as her fans are known — are anxiously waiting for her twelfth studio album The Life of a Showgirl, to be released on October 3.

News of the album came this month in an episode of Kelce’s New Heights podcast, which he hosts with his brother Jason, a former NFL player.

The two-hour-plus episode covered topics from how Swift felt after gaining control of her master recordings to her love of bread baking — showcasing playful dynamics between the two and setting a record 1.3 million concurrent views on YouTube, Guinness World Records said.

The 14-time Grammy winner’s last major release, The Tortured Poets Department, came out in April last year.

Though Swift is famed for singing about heartbreaks with her exes, her relationship with Kelce, one of the NFL’s most bankable players, has deepened despite the pressures of fame.

Kelce has been a major sports star for years, but his relationship with Swift has propelled him to a new level of international interest that a wedding is set to intensify.

He kicks off his thirteenth season with the Chiefs next week, with speculation that it may be his last as he pursues other entertainment endeavours.

Kelce has won three championship titles with the Chiefs, and is seeking an elusive fourth after coming up short in last season’s Super Bowl against the Philadelphia Eagles.

Both Swift and President Donald Trump were in attendance at the major sporting event, sparking much commentary after the Republican billionaire declared “I HATE TAYLOR SWIFT” following her endorsement of his election opponent Kamala Harris.