It is no secret that "Game Of Thrones" Maisie Williams is a huge fan of Korean boy group BTS. So it is not a surprise to see her idols at their London concert.

According to Metro, Maisie Williams is a self-professed BTS stan. She made sure to attend the group's second-night concert held in London's O2 Arena. Given the opportunity, she clamored her admiration towards her bias Jungkook.

It is worth noting, though, that the Jungkook - the youngest member of BTS - was forced to confine himself to a stool due to a heel injury.

The 21-year-old Maisie Williams also took some photos and filmed the sold-out concert of the Kpop group. She later posted the snaps on her official Instagram page, including footage of the band's "I'm Fine" performance.

Maisie Williams zoomed in on Jungkook, who can be seen seating on the stage. As expected, the actress screamed on top of her lungs, hoping BTS would hear her. She also reportedly filmed J-Hope while the latter was dancing. The photo was captioned: "Mood."

Maisie Williams filmed another video of BTS on stage. This time, she could be heard shouting, "C'mon boys, we love you!"

The Arya Stark actress has been repping the Kpop boyband for quite some time now. She participated in the so-called "Idol Challenge" in which one has to dance to the beat of the song.

In related news, Winter Is Coming reports that Maisie Williams thinks it would be great to spoil the fans of "Game Of Thrones" and unload everything she currently knows about the show's final season.

"I would love to just turn around to a fanatical fan one day and ruin the ending of the show," she said during a British chat program. "Watch their face, like, [drop]. That would be funny."

Maisie Williams even iterated that she knows "what it's like for someone to spoil" a favorite TV show. What's more, doing so is her "ultimate fantasy."

While the idea of knowing what the new season of "Game Of Thrones" could be, Maisie Williams does not have the legal power to do so. That is because she and the whole cast of the show are ordered to keep their lips sealed.

Maisie Williams said that she has been receiving dozens of requests to give out details about the final season of "Game Of Thrones."