Watch the pair sing along to Taylor Swift's song, 'You Belong With Me.'
After sharing a kiss on the field at Allegiant Stadium in Las Vegas, Nevada, the couple hit up XS Nightclub at Wynn Las Vegas in celebration of the team's third Super Bowl win in five years. The dynasty-cementing championship marked back-to-back titles for the Chiefs, having previously won the Vince Lombardi trophy just last year and, before that, in 2020.
An inside source tells ET that the team, including Travis and Chiefs quarterback Patrick Mahomes, "arrived in high spirits" around 2:15 a.m. as Queen's "We Are the Champions" played. The players enjoyed bottle service in an exclusive VIP area before relocating to the DJ booth to hang with Wynn Nightlife's resident artist Marshmello.
"Mahomes and Kelce were seen jumping around on stage with the famed masked artist, with a bottle of champagne in hand, singing and dancing as fans cheered them on," the source shared.
In an adorable moment shared on social media, one video shows Taylor and Travis dancing together, singing along and kissing as her "Love Story" plays.
ET's source says that Taylor and Travis were seen "exchanging affectionate gestures throughout the evening, including sharing celebratory kisses" as they kept the party going until 5:15 a.m.
Another source told ET on Monday, "Taylor is incredibly proud of Travis. She is thrilled to be part of this big moment with him."
"Taylor and Travis looked so cute together while at the after parties at Zouk Nightclub at Resorts World and XS at the Wynn Las Vegas," the source continued. "At one point, Taylor sat on Travis' lap and they looked like they were in their own world even though all the attention was on them. They danced and sang Taylor's music and Travis is such a fan of her and loves her songs."
In several more clips shared on social media, Travis can be seen in the DJ booth and singing along as a remix of his girlfriend's hit, "You Belong With Me," plays. In one video, multiple angles were edited together by a fan to show the couple singing along and pointing at each other -- with Taylor sweetly raising her glass -- as they sing the lyrics, "Why can't you see / You belong with me."
Both songs were featured on Swift's 2008 album, Fearless, which she rerecorded and released as Fearless (Taylor's Version) in 2021.
"Taylor was super friendly to everyone and everyone was respectful towards her. They did their own thing throughout the night too and spent time with friends. Travis is protective over Taylor, but also gives her space and is not clingy, which she appreciates," ET's source noted. "He’s happy to be with his teammates when they’re in social settings and makes an effort to check in with her, make her laugh, and ensure that she’s having a good time.Taylor and Travis were celebrating his win to the fullest. Even though this is such a busy and exciting time for both of them, they want to spend as much time as possible together before Taylor goes back on tour."
In another video, Taylor is seen grooving along as Post Malone hit the stage. The "Circles" singer is notably featured on her upcoming album, The Tortured Poets Department, on a song called "Fortnight."
Also joining the fun, ET's source adds, was Travis' brother, Jason Kelce, as well as Miles Teller, Blake Lively, Winnie Harlow, and Patrick's wife, Brittany Mahomes.
While the Mahomes called it an early night -- at 3:30 a.m. -- the rest of the crew kept their energy up with a special delivery of chicken fingers in the VIP section. (No word on whether the order came with a side of ketchup and seemingly ranch.)
The fun night out comes amid a brief break in Taylor's Eras Tour. The songstress wrapped up a four-night stint in Tokyo, Japan, just one day before the big game. Next, she'll head to Australia for three dates in Melbourne and four dates in Sydney beginning on Feb. 16.
No official word yet on Travis' plans for the NFL off-season. In a profile by the New York Times last month, the athlete's managers revealed that his offer to host Saturday Night Live last year had come through just hours after his 2023 Super Bowl victory over the Philadelphia Eagles.
"I don't think he's even been to sleep yet," Aaron Eanes recalled telling the booking agent at the time.
In a recent press conference, Travis opened up about how the SNL gig gave him a new perspective outside of his football career.
"The SNL stuff kinda opened up a new happiness and maybe a new career path for me, but it's funny for me to even say that at this point in my career because it's so much further down the road than it is right now," he said.
"That's the point of the offseason," he explained. "Being able to get out there and really find what you love to do and I've been fortunate to do a few things outside of the sports world that I've been enjoying doing, like getting on camera."
On Sunday, Travis publicly declared that he and the Chiefs already had their sights set on a Super Bowl three-peat next season.
In the meantime, fans are hoping to catch a glimpse of Travis tagging along for Taylor's tour dates. The Chiefs tight end famously attended Taylor's Eras Tour stop in Kansas City last summer, when he tried to give her his phone number on a friendship bracelet. The rest, as they say, is history.
In November, while on a bye week from his season, Travis traveled to Argentina to join Taylor on tour. It was then that she changed her lyric to "Karma," belting out, "Karma is the guy on the Chiefs, coming straight home to me."
"It was a whole bunch of fun," Travis later said on his New Heights podcast. "I was like, 'Oh shh! She really said that,'"