Taylor Swift’s has sold one of her controversial private jets on the eve of her Australian tour.

Aviation documents in the United States confirmed the sale of her Dassault Falcon 900, which costs $US44 million ($AUD68 million) brand new, sold on January 30.

The New York Post reported the sale leaves Swift with just one private jet, the Dassault 7X, which holds 16 passengers. The Dassault 900 holds 12.

Swift has long been criticised for her liberal use of private jets, but her representatives insists she buys carbon offset credits to make up for the pollution her jet causes.

Last week she sent a cease and desist notice to a college student who uses publicly available flight data to tweet about her private jet use.

It comes as she enjoyed one of the biggest weeks of her career with her boyfriend Travis Kelce winning the Super Bowl. She is now on her way to Australia.

Meanwhile, Monday’s hard-fought overtime game, high-end entertainment and the pop-culture phenomenon of Swift helped make Super Bowl LVIII the most-watched in history.

The Kansas City Chiefs’ overtime defeat of the San Francisco 49ers in the Super Bowl, with Swift cheering from the stands, drew a record 123.7 million US viewers.

It was not only the largest viewing figures recorded in the 58-year-history of the Super Bowl, but also – according to data from ratings company Nielsen on Tuesday – the biggest US audience for any event since the first astronauts walked on the moon in 1969.

The NFL championship averaged 120.3 million viewers on CBS alone on Sunday, topping last year’s audience for the Super Bowl, which drew a record 115.1 million viewers, according to Nielsen.

Additional viewers watched the game on kid-friendly Nickelodeon channels, the Spanish-language broadcast on Univision, and on streaming services including Paramount+ and NFL+.

The audience figure also includes those who watched in bars and restaurants.

CBS reported a slightly smaller audience of 123.4 million on Monday, relying on preliminary data.

The Chiefs won the game, the longest in Super bowl history, 25-22 in overtime.

“I was managing my expectations, but I had a bit of hope that it would happen,” CBS Sports chairman Sean McManus said of overtime.

“I can’t imagine a Super Bowl any better or more exciting than this.”

By comparison, an estimated 125 million to 140 million people watched US astronauts take the first steps on the moon on July 20, 1969.

That event was shown on three broadcast networks, the only television channels at the time.

The game featured a halftime performance by R&B superstar Usher, who was joined by Alicia Keys, H.E.R., will.i.am, Lil Jon and Ludacris.

Swift, who is dating Chiefs tight end Kelce, was shown celebrating, chugging a drink and biting her nails during tense moments from a suite at Allegiant Stadium in Las Vegas.

“There were several factors driving unprecedented buzz for the big game, from the record-breaking ad spend to the Taylor Swift effect,” said Ashwin Navin, co-founder and CEO of Samba TV, a data and measurement firm that estimated the game was watched in 39 million homes.

– with AP