The most highly-anticipated Super Bowl in history is underway, with the Kansas City Chiefs taking on the San Francisco 49ers in front of Taylor Swift and hundreds of other A-list celebs in Las Vegas – and the rest of the world watching on!

The action began at Allegiant Stadium shortly before 7pm EST – 4pm local time – after country music icon Reba McEntire had belted out the national anthem.

Swift had made a mad dash back from Japan for the game after playing four straight nights on her Eras Tour in Tokyo. She is joined in a suite – that boyfriend Travis is believed to have paid $1million for – with the rest of the Kelce family, her own mom and dad, and friends Ice Spice and Blake Lively.

She was seen giving Jason, the older Kelce brother, a hug as they reunited and he then introduced himself tot he American rapper Ice Spice – scenes that NFL fans wouldn’t have ever believed possible when the season began back in September.

The Chiefs won the toss before the start of the game and deferred, so the 49ers started with the ball in the battle for the Vince Lombardi trophy.

Taylor Swift made it back from Japan to cheer Travis Kelce and the Kansas City Chiefs on in the Super Bowl in Las Vegas

Taylor Swift made it back from Japan to cheer Travis Kelce and the Kansas City Chiefs on in the Super Bowl in Las Vegas

Swift made it back to take her place in the $1million Kelce family suite with her crew and his family a row behind

Swift made it back to take her place in the $1million Kelce family suite with her crew and his family a row behind

The 34-year-old Kelce, one of the star men for the Chiefs, looked typically cool and composed during the warm ups

The 34-year-old Kelce, one of the star men for the Chiefs, looked typically cool and composed during the warm ups

Chiefs quarterback Patrick Mahomes (center) gives a late Kansas City teamtalk with Kelce stood alongside him

Chiefs quarterback Patrick Mahomes (center) gives a late Kansas City teamtalk with Kelce stood alongside him

Taylor Swift reunited with Jason Kelce and wife Kylie hours before the Super Bowl in Las Vegas.

Swift’s boyfriend and Jason’s younger brother, Travis Kelce, will play for the Chiefs against the 49ers in Las Vegas.

Swift traveled from Tokyo to Los Angeles on Saturday after the Japanese leg of ‘The Eras Tour’ wrapped, and made the journey to Allegiant Stadium on Sunday.

Swift had met Jason and Kylie Kelce at least twice before, with a first meeting at the Chiefs Divisional round victory against the Buffalo Bills.

That was the day Jason jumped out of the Highmark Stadium luxury suite shirtless and chugged a beer with fans after Travis scored a touchdown.

Jason can be seen conversing with Swift and rapper Ice Spice from a luxury suite in Las Vegas

Jason can be seen conversing with Swift and rapper Ice Spice from a luxury suite in Las Vegas

Kylie and Swift were in the suite with Taylor's father, Scott Swift hours before the Super Bowl

Kylie and Swift were in the suite with Taylor’s father, Scott Swift hours before the Super Bowl

Also spotted in the million-dollar luxury suite was Scott Swift, Taylor’s father, decked out in Chiefs gear.

Travis and Scott met during one of Taylor’s shows in Argentina, visibly enjoying each other’s company.

It was the same show where Swift sang an adlib of her song ‘Karma’ with the updated lyrics ‘Karma is the guy on the Chiefs, coming straight home to me’.

The Super Bowl represents the largest Kelce-Swift family get-together in public since Taylor and Travis started dating in September.

Taylor Swift has been to all three of the Chiefs previous playoff wins this season, with her appearance in Las Vegas being game No 13 of the season.