Jason Kelce isn't afraid to shed a few teardrops on his guitar.

After all, the former Philadelphia Eagles center got very emotional while watching Taylor Swift—who is dating Jason's younger brother Travis Kelce—gift a young fan her famous "22" hat during the Red portion of her Eras Tour show in London.

"Dude, I've never cried at a f--king concert," Jason told Travis on the June 26 episode of their New Heights podcast, admitting that he was "literally tearing up" watching the Swiftie's wildest dreams come true. "It was f--king so special. It was great."

Travis agreed, noting that the "Karma" singer tries to make "every show unique" for her fans—whether it be inviting an unexpected guest onstage or performing different acoustic songs at each show.

"That's my favorite part," Jason said, referencing the "surprise song" section of the concert. "To be able to perform those seamlessly on the spot with nothing else to hide it, that was the highlight of the evening for me." 

The retired athlete also couldn't help but to bask in the afterglow of the endurance Taylor showed throughout her 45-song set. 

"Obviously, Taylor is an amazing singer-songwriter," he raved. "If I did what she did for one song, I would have to change my clothes."

As for Travis? The highlight of his London experience was joining Taylor in meeting Prince William, as well as the British royal's children Prince George, 10, and Princess Charlotte, 9.

"We met royalty, guys; there was royalty at the show," the Kansas City Chiefs tight end gushed. "I was lucky enough I got there early and got to meet Prince William. How about that? Your Royal Highness. He was the coolest motherf--king dude."

Travis added, "If anyone is doing it right, Prince William is doing it right. Thank you, Your Royal Highness, it was awesome meeting you—and Charlotte and George."

To see Travis' Eras Tour selfie with the royal family—as well as more celebs catching Taylor in action—keep reading.

Taylor made her relationship with Travis Instagram official June 21, 2024, with the help of the royal family as they all joined her backstage at her concert in Wembley Stadium in London.

Taylor also took another selfie with the royal family at her Wembley show.

The trio united in the VIP tent in London on June 21, 2024. 

The Knocked Up actress also hung out with the Queer Eye alum at the Wembley concert.

The NFL star was a true London Boy at Wembley Stadium with the Queer Eye star.

Dearest reader, how adorable is this friendship?

The "Dip It Low" singer and her teen daughter Violet were in a lavender haze at Taylor's Paris show in May 2024.

The Grey's Anatomy actress attended the Eras Tour in France in May 2024, captioning this pic with the Midnights lyric, "Cause we were in Paris."

"It’s fair to say Sydney always delivers," Rita Ora captioned Instagram photos from Taylor's Feb. 23 show, including a snap with Travis Kelce. "Or shall we say our TayTay @taylorswift always delivers!”

Taylor's dad Scott Swift delivered an epic photobomb.

"Got to see an old friend shine tonight," Katy Perry captioned footage on Instagram from the Feb. 23 concert.

The Blink-182 rocker—whose band was playing near Taylor's Sydney venue on the same day—and the Pitch Perfect alum hung out in the VIP tent.

The Oscar winner captioned the moment with friends in Mexico City, "Spamming u w really good @taylorswift Eras Tour content."

The Pretty Little Liars star attended with friends Morgan Pesante, Katie Greenthal and Claire Leahy. "Omg??? @taylorswift putting on a show that was so good I can't even process," she wrote. "Nostalgic, empowering, and sparkly."

The "Bad at Love" singer got in the spirit by making friendship bracelets to trade with fans during the last Los Angeles show.

"Still in the afterglow of the most magical night," the Law & Order: Special Victims Unit star wrote on Instagram Aug. 9 after a bejeweled night out in L.A. "Deepest gratitude to @taylorswift for your poetry and wisdom. You inspire us and connect us to our #delicate tenderness, joy, hope and strength—and most of all, our wish to live and love courageously."

Sharing pics from an L.A. show, Chris Olsen quoted the T.Swift lyrics in his caption, "I DON'T KNOW HOW IT GETS BETTER THAN THIS."

"Eras tour (Dylan's version)," the influencer captioned fits of her rocking a Stella McCartney outfit. "@taylorswift you are a goddess best night ever."

The Hills stars filled a blank space in their calendar with a date night in Los Angeles at the Eras Tour. Heidi Montag captioned their pics, "This was the concert of a lifetime! Legendary! Thank you for the tickets @taylorswift."

"@taylorswift with the fam," Jessica Alba wrote, "what a show!" She and husband Cash Warren celebrated their love story by taking their kids Honor, Haven and Hayes.

The Mad Max star danced to "Shake It off" with her kids August and Jackson. "Thank you for the best birthday ever @taylorswift!!!" she wrote. "We had such a great f--king time."

"What a SHOW," Paula Abdul wrote while posting for a photo with Vince Vaughn and Taylor's parents Scott and Andrea Swift in Los Angeles.

The Vanderpump Rules stars made their wildest dreams come true on the floor with Paula.

The "No One singer" attended the Aug. 5 show at SoFi Stadium in Los Angeles with her 8-year-old son Genesis.

The actress attended one of Swift's shows at SoFi Stadium in Los Angeles with Anastasia Beverly Hills cosmetics founder Anastasia Soare and her daughter, Claudia.

The late Kobe Bryant's wife Vanessa Bryant and their daughters Natalia Bryant, 20, Bianka Bryant, 6, and Capri Bryant, 4 attended Swift's show at SoFi Stadium in Los Angeles Aug. 3. While performing her song "22," the singer approached Bianka at the end of the stage, hugged her and gifted her a black hat she typically gives a fan during the number. The family later got to hang out with the pop star backstage.

The Hills alum was ready to be enchanted at the Aug. 4 show.

The New Girl star shared a family photo on TikTok ahead of the Aug. 4 show.

The duo snapped a selfie at SoFi Stadium on the first night of the Eras Tour in Los Angeles, with Elizabeth Banks writing of Taylor's performance, "She was an Angel and a Unicorn and Pure Magic."

Elizabeth took a pic of Sarah Paulson showing off her Eras Tour merch from the Casamigos suite.