SPEED have released the music video teaser for their second track "Sad Promise".

Comprised of members�Taewoon, Jungwoo, Yoohwan, Taeha, Sejoon, Jongguk, and�Sungmin, SPEED released the MV teaser for their title track "It's Over" earlier this week.

SPEED's music videos for "Sad Promise" and "It's Over" are slated for release on January 7th next year and are already a hot topic online for the vast amount of money being invested into the project.

The dramatic music video for "Sad Promise" is reported to have cost over�750 million won�(~$700, 574 USD). It's set during the '80s in the midst of the Gwangju Democratization Movement and features actors Park Bo Young, Ji Chang Wook, Ha Seok Jin, Son Na Eun as well as Choi Ji Yeon, Kim Young Ho, Choi Minah, and Jung So Young.

Check out the "Sad Promise" MV teaser below!