Taylor Swift and Travis Kelce marry at Madison Square Garden

Taylor Swift and Travis Kelce are married.

Swift’s publicist confirmed the marriage took place Friday evening inside Madison Square Garden where actor Adam Sandler was the surprising officiant at a star-packed ceremony.

WATCH THE VIDEO ABOVE: Taylor Swift and Travis Kelce’s Madison Square Garden wedding 

The super-secretive buildup to the nuptials culminated when a marquee outside the Midtown Manhattan arena proclaimed “JUST&T MARRIED” once the deed was done.

The world’s most famous pop star and the future Hall of Fame football player didn’t feature a traditional wedding party, as Swift was accompanied by her “man of honor,” brother Austin Swift, while Kelce had brother and fellow football great Jason Kelce serving as best man.

The bride and groom were dressed in looks by Christian Dior Haute Couture and wore custom Christian Louboutin. The bride sparkled in Cartier jewelry, her team said.

The wedding between the superstar singer and football player took place as fans and spectators gathered outside MSG in the blistering heat, eager to be part of the occasion, even though the event was almost entirely hidden away from the public.

Very few details were disclosed in the buildup to the wedding weekend. Yet a permit obtained by The Associated Press this week and other sources helped confirm that the high-profile event would indeed take place at MSG over the July Fourth weekend, packed with its own set of festivities amid a massive heatwave.

The long anticipated union of sports and song brought hype to new heights at a venue made more for historic NBA games and bucket-list concert.

Singer Camila Cabello, actors Hugh Grant, Ethan Hawke and Jason Sudeikis, and model Karlie Kloss were among those arriving minutes before the expected start time. Chiefs running back Kareem Hunt, Seattle Seahawks receiver Cooper Kupp, NFL announcer Joe Buck and Jenny Han, author of the “The Summer I Turned Pretty” series, also entered the arena.

An Associated Press camera outside the arena showed a long line of black SUVs dropping off wedding-goers in tuxedos and evening gowns, surrounded by New Yorkers in shorts and Swifties amassing for the occasion. By 5.30 pm local time (9.30am AEST) the arrivals appeared to be essentially over.

Celebrities, athletes and friends were posting on social media about getting ready or about to leave for a black-tie event, including Brandon Borders, producer of the New Heights podcast starring Kelce and his brother Jason Kelce; Beau Allen, retired defensive lineman for the Philadelphia Eagles; and Jessica Chastain.

There was a notable lack of social media posts from guests once they had entered the arena, after reports that phones would not be allowed.

Weddings have been a constant subject in Swift’s songs since she was a teenager, and her actually walking the aisle for the first time at age 36 adds to the drama. It would also be a first marriage for the 36-year-old three-time Super Bowl champ Kelce, who could have been one of the jock characters in Swift’s early hits.

A city permit obtained by the AP shows that Friday’s wedding event could last until 4am Guests appeared as though they were coming to a big awards show, but their arrivals were obscured by tents and gazebos in an odd mix of hype and hush.

Outside the arena, some frazzled tourists joked that it was a bad weekend to visit as they navigated strict road and sidewalk closures, but others appeared happy to sneak a peak at the spectacle. Police cut off most access where guests were being dropped off, but a few patrons gathered in nearby businesses ahead of World Cup matches and peered out windows.

Diana Warshavsky, who lives in New York, decided to head over to MSG on Friday to celebrate Swift and Kelce’s wedding with fellow Swifties and “send her good vibes.”

“We’re relatively the same age, I’m a year older than her and I just got married this year as well,” Warshavsky said. “I’m just so happy for her.”

The relationship of the pop star and the football player has continued to thrill and fascinate millions around the world — particularly the Swifties, the pop star’s enormous and ardent fan base — for the past three years ever since the pair first started dating.

Key questions remain over how Swift and Kelce have transformed MSG into a wedding venue fit for a billionaire and the star tight end for the Kansas City Chiefs, as well as who may perform and who will officiate. Trucks and crews have been going in and out of the venue for days, setting up tents and whisking massive materials inside, setting off more speculation about MSG’s makeover.

And while fans have seen Swift wear wedding dresses in plenty of music videos over the years, many also remain eager to see what looks she will unveil at the wedding.

The wedding is taking place during a jam-packed weekend even by New York’s standards. It’s the July Fourth weekend, where the city will be partake in celebrating the nation’s 250th birthday. Separately, a parade of dozens of tall ships will take place on the Hudson River, and a World Cup game is scheduled in New Jersey.

Earlier this week, Swift and Kelce donated US$26 million ($A37 million) to 20 local and national charities across the US Many of the organizations were located in areas where the couple has deep ties, including Nashville, Tennessee; Los Angeles; Kansas City, Missouri; and New York.