Rookie group 100% will be making their debut.

On September 18, 100% will be releasing their debut single album WE, 100% and their title song "Bad Boy."

100% was meant to symbolize their superior talents, and their title song "Bad Boy" was produced by the songwriter that also wrote Baek Ah Yeon's "Sad Song."

The producer said, "They had superior musical talents that is usually not expected in new groups, and I have high expectancy for their stage performances."

100% is a 7-member male idol group, composed of Min Woo, Jong Hwan, Chan Yong, Chang Bum, Sang Hoon, and Hyuk Jin. Arirang TV had chosen them as the first winners of their program 'New Star.com' and had shown themselves to 188 countries worldwide.

The group released the teaser video for their new song on Friday and the song itself will be released on September 18.