Rumours that Taylor Swift and Travis Kelce are already engaged have continued to heat up after the singer brought her boyfriend on stage in London.

The pop star, 34, sent fans completely wild when her NFL star boyfriend, 34, joined her on stage for a skit during her third Wembley Eras tour show on Sunday night.

Decked out in a tuxedo and top hat, the Kansas City Chiefs player carried Taylor across the stage during her I Can Do It With a Broken Heart outfit change.

Taylor also went Instagram official with Travis on Friday after almost a year of dating as she shared a snap of them smiling with Prince William and his children George, 10, and Charlotte, nine.