After unveiling the profiles of the members, and unleashing the first teaser, Cube Entertainment has just brought out�BtoB's next teaser in the line up, to gear up fans for the group's official debut.

Their title track, "Insane", proves to be a song of a different beat than the ballad we were able to sample in the first teaser.

The ballad track, "Imagine", and this up beat dance track, "Insane", will be promoted as a double title track, which will be released on March 21st digitally.

In addition, BtoB will hold a premium launching show on March 21st and begin their activities at the same time.