From ATEEZ’s Hongjoong to BTS’s Jungkook, here’s how a simple painted nail became a massive tool for real-world activism.
A single painted fingernail has become one of the most recognizable symbols of global social justice, finding an unexpected voice within the K-pop industry.
At the center of this movement of idol advocacy is Hongjoong of ATEEZ. In 2018, during his trainee days before the group debuted, early performance clips and fan photos constantly featured something that caught the attention: a single nail, typically on his pinky or ring finger, painted in shades of blue or black.He kept it that way, whether he was doing televised music shows, fan signings, or photo shoots. And when asked about it by interviewers later, he said that since he frequently appeared on stage and broadcasts, it was an easy way for him to use his platform for good. The goal, he said, was for ATEEZ to be a positive influence on people.
Far from a styling choice, it was Hongjoong’s way of supporting the Polished Man campaign, a global initiative that raises awareness about violence against children. Inspired by industry seniors like iKON’s Bobby and B.A.P’s Bang Yongguk, he eventually became an official ambassador for the campaign. By 2020, ATEEZ also joined the movement.
Today, the Polished Man campaign is built on a simple but powerful message: that one visible act can spark conversations about a crisis that too often remains unseen. The movement traces back to an encounter between Elliot Costello—the co-founder of YGAP (Youth Global Awareness Programme), an Australian non-profit—and Thea, an eight-year-old survivor of physical and sexual abuse, whom he met during a visit to a trauma recovery programme in Cambodia. Despite the language barrier, the two spent hours communicating through games. By the end of the evening, Thea drew a heart on Costello’s palm and painted all of his nails blue.
That moment stayed with Costello. He started painting one of his own nails to remember Thea and the millions of other children facing violence. He also realized a painted nail on a man gets people to ask questions — and in a world that often ignores abuse, those questions can start important conversations.
From this very thought, YGAP started the global Polished Man campaign, focused on a world without violence, where women and children are safe. Here, the choice of “one” nail mattered. The campaign says it’s meant to pique curiosity and put it on the table. Globally, one in five children face physical or sexual violence before they turn 18. A child also loses their life to violence every five minutes. So, one painted nail stands for one child in five, and serves as a visible symbol on the hand.
The campaign has been gaining momentum ever since, through corporate partnerships and Western celebrity endorsements led by Hollywood stars like Chris Hemsworth and Zac Efron. The actors also used social media to bring the movement into the mainstream, gradually expanding its reach, with K-pop stars joining the cause.
The global spotlight shifted dramatically when fans began noticing the signature painted nail on the industry’s biggest stages. When Jungkook of BTS was spotted with his nail painted blue last year, it drew widespread attention from millions. Because when an idol of his stature adopts a symbol, it’s never just a personal choice. Alongside his bandmates Jin, who has also supported the initiative, their gestures directed attention to the cause, while also helping educate young fans worldwide about domestic safety and trauma prevention.
It perfectly mirrors what Hongjoong said on the Zach Sang Show, that a person’s “childhood is very important” and deserves protection. So he uses his platform to spread the message that every child is entitled to preserve their innocence and grow up safely in the right environment with positive life experiences.
These messages have struck a chord with the fandom. Inspired by their idols, groups like ATINY and ARMY have set up fundraising pages, pooling together substantial amounts in microdonations for YGAP and local children’s shelters. Thousands of young people worldwide have been painting their own nails, spreading the word in classrooms and workplaces.
On a deeper level, the reason male K-pop idols being part of this drive really matters is that it also changes how we see masculinity. For far too long, being a “man” meant being physically dominant, hiding emotions, and keeping family issues behind closed doors. Polished Man flipped that idea, swapping traits of dominance for vulnerability, empathy, and care. Hence, these idols wearing nail polish — something that’s always been stereotyped as “feminine” — to protect others, highlights that real strength lies in solidarity.
Polished Man is a sober reminder that changing the world does not always require huge wealth or political power. Sometimes it just requires the courage to look a little different.


