The fab four is back in action.

Brittany and Patrick Mahomes joined Taylor Swift and Travis Kelce at the US Open men’s singles final at Arthur Ashe Stadium in New York City on Sunday.

The Kansas City Chiefs quarterback and his wife were seen alongside the pop star and the tight end in a suite at the sporting event.

9Brittany and Patrick Mahomes joined Taylor Swift and Travis Kelce at the US Open men’s singles final Sunday.Getty Images

9The event was held at the Arthur Ashe Stadium in New York City.Getty Images

9The Kansas City Chiefs quarterback wore a black Prada zip-up jacket and black sunglasses on Sunday.AP

Patrick, 28, wore a black Prada zip-up jacket and black sunglasses, while Brittany, who is currently pregnant with the couple’s third 𝘤𝘩𝘪𝘭𝘥, wore a white Gucci mini dress and brown aviator shades.

At one point, Brittany and Swift hugged as they stood in the stands next to their men, and the “Bad Blood” singer later appeared to be having a great conversation with Patrick.

At another time, the billionaire musician, 34, erupted in laughter while Kelce, also 34, took off his Gucci bucket hat and scratched his head.

9Brittany, who is currently pregnant with the couple’s third 𝘤𝘩𝘪𝘭𝘥, wore a white Gucci mini dress and brown aviator shades.REUTERS

9At one point, Brittany and Swift hugged as they stood in the stands next to their men.AP

9The “Bad Blood” singer later appeared to be having a great conversation with Patrick on Sunday.Getty Images

The “Catching Kelce” alum and Swift packed on the PDA in the stadium after walking in holding hands.

Kelce was photographed standing behind his girlfriend, whom he went public with in September 2023, while his arms were wrapped around her and was also spotted giving her a sweet kiss on the head.

The Mahomeses were last seen with Swift and the “New Heights” podcast co-host at the “Cruel Summer” singer’s $17 million Rhode Island beach house last month.

9At one point, the billionaire musician erupted in laughter while Kelce took off his Gucci bucket hat and scratched his head.Annie Wermiel/NY Post

9The “Catching Kelce” alum and Swift, seen above on Sunday, packed on the PDA in the stands.Annie Wermiel/NY Post

9They went public with their romance in September 2023.Danny Mahoney/Wynn Las Vegas / MEGA

According to photos obtained by Page Six at the time, Patrick was seen on the balcony of Swift’s pricey home with her, his teammate and one of his kids.

Swift also hosted several other couples at her abode, including Bradley Cooper and girlfriend Gigi Hadid and Blake Lively and husband Ryan Reynolds.

The “Hangover” star’s 7-year-old daughter, Lea, also attended the festivities with her dad.