Cube Entertainment's new 7-member male idol group, BTOB, has finally made their official debut. On March 21st, the group's debut tracks titled "Insane" and "Imagine", which feature different genre, have been released on various online music websites.

Following their "Premium Launching Show" on March 21, BTOB finally kicked off their debut performance on KBS Music Bank. The boys showcased their distinctly unique charms and delivered an impressive performances of title tracks "Insane" and "Imagine".

"Insane", produced by Seo Jae Woo, who has composed songs for other Cube artists such as 4minute and B2ST, features a spectacular melody that seamlessly incorporates the members powerful vocals and rap. While "Imagine" is an R&B ballad and prominently showcases BTOB’s appealing vocals.

Check out their debut performance below!