It has been revealed that rookie group ABLE recently welcomed new members, becoming a four-member group.

ABLE originally made their debut as a duo consisting of members Juho and Chulwoong and received attention for their soulful voices and ballads. But with the addition of their two new members, Sungmin and Jiyeol, the group will show more of their masculine charms for the hip hop inspired sound and concept for their latest album.�"Mystery" is also receiving attention for being produced by hit makers One Punch.

The boys of ABLE held their comeback stage as promised on Mnet's 'M! Countdown'.

Check out their stage below, and the rest of today's clips here!