Rapper 7dnight has a successful year. Photo vtcnews.vn

A snippet from Không Sao Cả (No Problem) by Vietnamese rapper 7dnight has unexpectedly taken the internet by storm over the past month.

The catchy 30-second refrain Gwenchana Ding Díng Ding Dình Ding has gone viral in multiple countries, amassing over 1 billion views on TikTok.

The song gained traction through dance videos set to its melody, with more than 1.4 million videos now using it as background music.

A host of celebrities, including Aespa, Enhypen, Ateez, Seventeen, Le Sserafim, Jeon Somi, NCT, ZEROBASEONE, Meovv, The Boyz, NMIXX, Treasure, Jung Il Woo, and Thai duo GeminiFourth, have joined the trend, with South Korean and US-based accounts driving much of the hype.

Boy band Seventeen even performed the dance at their concert in Jakarta, Indonesia, on February 8 before an audience of 40,000 fans.

The viral trend has propelled Không Sao Cả onto the global stage, with no signs of slowing down. One standout video, featuring a dog dancing to the track, has attracted nearly 88 million views and over 11 million likes since being posted on February 3.

The song ranked fifth on TikTok Billboard’s global top 50 from January 27 to February 2, the only Vietnamese track on the chart.

“7dnight’s Không Sao Cả vaults from No 24 to No 5 in its second week on the chart. Featured on the Vietnamese music competition Rap Việt and released in November 2024, the song gains momentum via a dance trend, with some top-performing clips also featuring pets and stuffed animals,” Billboard noted.

The phrase Gwenchana Ding Díng Ding Dình Ding has particularly resonated in South Korea, where the song briefly ranked among the top 50 trending tracks on Spotify.

In a January 20 article, Chosun highlighted the song’s surge in popularity, noting it even reached No 1 on search rankings for major music streaming platforms in South Korea.

Korean listeners have called it “a fun and addictive song”, with one commenting that the gwenchana message is “really cool”. Vietnamese fans say its repetitive rhythm makes it easy to remember, comparing it to an “earworm”.

Không Sao Cả was originally performed by 7dnight during the breakthrough round of Rap Việt season 4.

Many international artists are filming dance cover videos to the music of 'Không Sao Cả'.— Screenshot photo

7dnight, whose real name is Ngô Tuấn Đạt, 27, a native of Nghệ An Province. His journey to success has been an inspiring one.

The figure 7 in his stage name represents the seven fingers he was born with—his grandfathers were exposed to defoliant Agent Orange during military service, resulting in a congenital defect in his left hand.

This condition left him struggling with self-doubt for much of his early life.

“I used to get teased, so I often tucked my left hand into my pocket to hide it,” 7dnight said.

After high school, he moved to South Korea, where his biggest fear was applying for jobs in restaurants and farms. He wore work gloves to conceal his hand, but in his first two months, he faced five job rejections after removing them.

“I felt the most hatred towards myself at that time,” he said.

He took any work he could find—construction, farming, selling, dishwashing—working up to 14 hours a day.

Amidst the exhaustion and isolation, music became his escape, initially as a stress reliever, then as a serious pursuit. His goal was to earn enough to pay off his father’s debts and invest in his passion.

7dnight (left) and rapper BigDaddy. Photo courtesy of Vie Channel

During long workdays, song ideas would come to him unexpectedly.

“I’d sneak into the bathroom to write them down before I forgot,” he said.

To his surprise, his social media posts started gaining traction.

Encouraged by rapper BigDaddy, he eventually returned to Việt Nam to compete in Rap Việt.

“Coming back was life-changing—music helped me overcome my insecurities,” he said.

Though he didn’t win Rap Việt season 4, he found success, with Không Sao Cả making waves worldwide.

The term Gwenchana which means "It's okay", "It's alright" or "I'm fine" in Korean, became his personal mantra during difficult times, reminding him to push forward despite his struggles.

Now, with newfound confidence, he no longer feels the need to hide his differences.

“From the start of my career, I’ve wanted to spread positive energy. That’s my mission.” VNS