Sunmi has been preparing for her perfect summer comeback with the upcoming single album, 'Heart Burn.'

On June 24 at midnight KST, the artist dropped an interesting mood teaser for 'Heart Burn.' In the mood teaser, Sunmi shows off a California beach with a purple sunset and later blue skies.

Sunmi will be ready for the summer heat on June 29 at 6 PM KST. So check out the teaser above until the release of more!