Travis Kelce is having a blast in Las Vegas!

The 34-year-old Kansas City Chiefs player was photographed partying with teammates, including Patrick Mahomes, in Sin City on Saturday, shortly after returning from Sydney, Australia, where he had spent time with his girlfriend Taylor Swift for her Eras Tour shows.

Kelce hung out in the DJ booth at XS nightclub at the Wynn Las Vegas alongside EDM star Marshmello, who was playing at the nightclub, in a video posted on X (formerly Twitter), while Kelce and Chiefs teammates sang Queen’s “We Are The Champions” in another clip posted on the social media platform.

Earlier, a video shared on X showed the tight end arriving at the venue with friends, including Mahomes, 28. The players arrived at the club at about 12.15 a.m. and partied in a VIP room, which included bottle service, a five-tiered custom football-themed cake, and championship belts to commemorate their big triumph. Before departing the club at roughly 4.15 a.m., the group was in a joyful mood, even spraying the audience with champagne.

Kelce had arrived in Vegas on Saturday and had already attended LAVO at The Palazzo before the night at XS. He joined Mahomes, who was already in town for a bachelor party, and other Chiefs teammates for a champagne brunch featuring plenty of champagne, seafood towers, and waffle platters.

A photo published on X showed Kelce and his colleagues enjoying a good brunch, with the tight end wearing a print shirt and holding a beer and a bottle of champagne.

Kelce’s return to Vegas, where the Kansas City Chiefs won the Super Bowl on February 11, follows his whirlwind travel to Sydney to support girlfriend Swift, 34, on her Eras Tour there. On Monday, the “Karma” singer will wrap up her city tour.

The duo was seen spending quality time together at Sydney Zoo immediately after Kelce arrived on Thursday. Kelce was then seen in a video posted to X attending Swift’s Friday event at Sydney’s Accor Stadium, where he went through the crowd to his section and waved to fans. 

In other X footage, Kelce applauded and laughed as the music rose in the stadium, wearing friendship bracelets on both arms similar to those swapped by Swifties during the Eras Tour. Photos also show the tight end waving and dancing during his girlfriend’s performance.

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Swift and Kelce were photographed kissing offstage following her performance in another beautiful video posted on X.

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Kelce previously supported Swift in November by flying to Buenos Aires, Argentina, to see her perform in concert. After the show ended, cameras spotted Swift leaping into Kelce’s arms as the two kissed backstage. 

After winning this year’s Super Bowl, Kelce told PEOPLE that he plans to spend his offseason with girlfriend Swift, as they “are making plans for the summer and are excited to travel together in Europe when Taylor takes her tour there.”