SEE ALSO: DIA's Yebin & Somyi to treat fans to a duet single before their 'The Unit' appearance

Before participating on KBS2's 'The Unit', the two artists promised to release a duet single. They kept their promise by releasing a teaser image for the single. The image shows both Yebin and Somyi posing for the camera with the Seoraksan behind them. Check out the teaser image below!

"Seoraksan in October" will be released on September 28, stay tuned!