Solo singer Sunmi released her "24 Hours" MV teaser video online today.

This teaser video shows off her serious face along with the winding of the clock and gained much interest from viewers.

The video continues and shows Sunmi with her lover as the clock ticks.

This video reveals the storyline of her song as she shows the transformation of a girl becoming a woman through the man that she loves.

The official music video will release on August 20 and the single will release online on August 26.