ITZY's "THAT'S A NO NO" keeps climbing to new heights. Just one day after the group announced their first-ever music show performance of the track for M Countdown's March 19 episode, their dance practice video has shot to #1 on YouTube's trending chart in South Korea.

Released on March 14, the dance practice showcases the choreography that helped make "THAT'S A NO NO" a viral sensation. The video's rapid rise to the top trending position demonstrates the continued momentum behind this unexpected hit.

"THAT'S A NO NO" originally appeared as a B-side track on ITZY's 2020 mini album "IT'z ME," but it never received the full promotional treatment that title tracks typically get. Six years later, the song has found new life through social media, with fans embracing its catchy hook and distinctive choreography.

The timing couldn't be better for ITZY. With the dance practice video dominating YouTube trends and their M Countdown performance just days away, "THAT'S A NO NO" is experiencing the kind of viral moment that many artists dream of. The fact that it's happening with a six-year-old B-side makes it even more remarkable.

This surge in popularity highlights how K-pop tracks can have multiple lifecycles in the digital age. While "THAT'S A NO NO" may not have been a chart-topper in 2020, its recent viral status proves that great music can find its audience regardless of when it was released.

ITZY's upcoming M Countdown appearance on March 19 will mark the first time they've performed "THAT'S A NO NO" on a music show stage. Given the current buzz around the track and the explosive response to the dance practice video, their performance is shaping up to be one of the most anticipated moments on the show.