Prince William cheers on Taylor Swift at Wembley with Royal kids and Zara Tindall

Prince William celebrated his birthday by taking his three children to watch Taylor Swift perform to a packed stadium in London on Friday as part of her Eras Tour.

The 42-year-old attended the show with Prince George, Princess Charlotte, and Prince Louis, who were joined by fellow royals Zara Tindall and her husband, Mike Tindall, reports the Mirror.

The Princess of Wales, who is currently battling cancer, was not present and was last seen in public earlier this month at Trooping the Colour. William was seen leaving Wembley in the back of a car.

Friday marked the first day of Taylor Swift's three-day concert at Wembley Stadium in London. Taylor's performance was filled with enthusiastic fans, including some celebrities spotted by keen-eyed attendees.

Although William's children were not photographed with him, they were reportedly present on Friday night, according to MailOnline. Bridgerton star Nicola Coughlan and Queer Eye star Jonathan Van Ness were seen in the VIP section, enjoying Taylor's chart-topping songs.

One fan captured Nicola and Jonathan waving their hands and singing along to "You Need to Calm Down," matching the energy of the crowd and showing their loyalty to Taylor. Also spotted in the audience were Taylor's boyfriend, Kansas City Chiefs player Travis Kelce, and her best friend, model Cara Delevingne, along with Salma Hayek and Leslie Mann.

Fans on X couldn't get enough of seeing the Derry Girls alum and TV personality rocking out together during the Eras Tour performance.

“Nicola Coughlan and Jonathan Van Ness brought the energy during "You Need To Calm Down" at today's #LondonTSTheErasTour,” one fan commented on the social media platform.

The fun didn’t stop there for Nicola as the blonde beauty connected with fellow attendees who exchanged friendship bracelets with her. Initially, she was nervous about seeing Taylor on her Eras Tour after being interrogated by a Taylor superfan, who happened to be her niece.

Earlier in the week Nicola opened up about her niece “grilling” her about all things Taylor before the actress saw the music sensation at Wembley Stadium with Hits Radio.

“My niece is the biggest Swiftie and when I was home in Galway doing press she was grilling me like, ‘what's your favorite album?’ And I was like 1989, she said, ‘you can't say that one!,” Nicola recounted.

'But that's my favorite, and she was like ‘do you know your earlier ones? Do you know this…’ So now I'm slightly terrified that I'm going to go and I don't have the PHD in Swiftism!”

Nicola, knowing the lyrics to Taylor’s song You Need to Calm Down from the Pennsylvania-bred songstress’ 2019 album Lover showed that she didn’t deserve to have her Swiftie card revoked anytime soon.

Taylor has just wrapped up seven shows across the UK. Earlier this month, she opened up her UK shows in Edinburgh at the Murrayfield Stadium. She then headed to Liverpool for a further three shows at Anfield, and then travelled to Wales for one singular show at Cardiff’s Principality Stadium.

Taylor’s feet are now firmly in the capital city of London, with her due to perform her three-hour-long Eras Tour setlist for thousands of adoring fans at Wembley Stadium on June 21, 22 and 23. Although she’s only performing three shows in the capital city this month, she will be back in August for a further five shows at Wembley on 15, 16, 17, 19 and 20.

To celebrate the show, London has transformed into Taylor town, with murals dotted around the city dedicated to the singer.

The capacity at Wembley is a whopping 90,000 which means it's one of the biggest venues on the Eras Tour.

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