SPEED have released their album 'Superior SPEED' along with the music videos for "It's Over".

As you know by now, the group revealed their high-cost drama version and dance version of the MV for "Sad Promise", which sparked a lot of interest from fans as well as the public.

Check out the boys perform "Sad Promise" featuring Davichi's Kang Min Kyung as well as their title track "It's Over" below.