There is a definite cause for celebration for popular South Korean girl group 4Minute.

The group's official YouTube channel recently surpassed 1 million subscribers and the members extended a big 'thank you' to their fans with a special Facebook post.

"Thank you 4NIAs! 1,000,000 fans subscribed 4Minute's YouTube Channel. Thank you for your love and support," the message read in both Korean and English. A special celebratory graphic was also included to mark the event.

The 4Minute YouTube channel features music videos, teaser clips, practice videos, interviews, and more.

The five-member K-pop act debuted in the summer of 2009 with the song "Hot Issue" and most recently released the EP Crazy in February 2015. The album debuted at number one on the Billboard world albums chart.

4Minute will wrap up their Latin America tour tonight with a performance for fans in Argentina. The group also traveled to Mexico and Peru.