Patrick Mahomes partied with LeBron James and other heavy hitters while attending the star-studded Carbone Beach soirée celebrating Formula 1’s Miami Grand Prix on Saturday night.

“Mahomes caught up with LeBron, Kevin Durant and a few others and he was very playful,” an eagle-eyed spy tells Page Six on Sunday, adding, “He was truly having a great time and people naturally gravitated towards him.”

We hear the Kansas City Chiefs quarterback — who was joined by wife Brittany Mahomes — was seen “talking and laughing” with James, Durant, Kevin Love and Draymond Green toward the end of the night.

8The two athletes were seen chatting and laughing with Kevin Love, Draymond Green and others.Getty Images for American Express Presents CARBONE BEACH8Mahomes was also seen hanging with Kevin Durant.Getty Images for American Express Presents CARBONE BEACH

“A bunch of people could be heard whispering how two of the GOATs of our generation were both in the room,” the source says of the Los Angeles Lakers player and NFL star.

Patrick, 28, was seated a few tables away from James, 39, and his circle but kept interacting throughout the night.

“Patrick was in a great mood and him and Brittany were having a great time with their friends,” the source shares, adding that the couple hit the dance floor as the evening’s surprise entertainer, Pitbull, performed on stage.

8The Kansas City Chiefs player was joined by his wife, Brittany Mahomes.Getty Images for American Express Presents CARBONE BEACH8“He was truly having a great time and people naturally gravitated towards him,” a source tells Page Six.Getty Images for American Express Presents CARBONE BEACH

Mahomes was dressed casually in a Dior T-shirt and jeans and accessorized with two shimmery diamond necklaces.

Meanwhile, Brittany showed some leg in a blue and red checkered mini skirt and crop top set.

8Guests sipped on James’ Lobos 1707 Tequila.Getty Images for American Express Presents CARBONE BEACH8Elon Musk spent the evening seated beside Ken Griffin.Getty Images for American Express Presents CARBONE BEACH

Notably absent from the event was Patrick’s bestie, Travis Kelce, who had attended the Kentucky Derby earlier in the day before making his way to Miami for the Formula 1 race on Sunday.

There was, however, no shortage of billionaires at night three of the exclusive fête that famously charges $3,000 a head.

On the other side of the luxurious bash on the beach, Elon Musk dined with Citadel CEO Ken Griffin. Meanwhile, another table included real estate exec Stephen Ross, investor Jorge Pérez and Miami Dolphins CEO Tom Garfinkel.

8Musk was dressed casually in a black T-shirt and coordinating jeans.Backgrid/MEGA8Musk was among the many billionaires at the lavish fête.Backgrid/MEGA

“The attention of the room on one side was centered around Griffin and Musk while the attention on the other side hovered around Mahomes and his friends,” the source tells us.

Other notables at the highly-anticipated event include Jason Tartick, Dale Moss, Peter Weber, Daymond John, Lindsey Vonn,  Maverick Carter, Brooks Nader and Michael Bay.

The American Express-sponsored party — hosted by Major Food Group founders Mario Carbone, Jeff Zalaznick, and Rich Torrisi — served up an endless supply of caviar, Dom Pérignon, cocktails by Lobos 1707 Tequila and Belvedere, and a 4-course Italian dinner.