Idol groups are only human, and the four shorties of D-Unit showed fans how tired they've been during their latest comeback.

D-Unit posted on the 13th, "We have become more busy than we've ever been after our debut. We are happy, yet tired," along with adorable snapshots of the girls lying down on the floor in exhaustion.

A representative revealed, "They have been getting a hot response since their debut. Currently, their daily schedule includes at least 4 to 5 events. Although they are exhausted, they are really thankful for the love and support."

D-Unit have returned with a new member, GP Basic's Janey (now JNEY), with their new single "Talk to My Face" created by Zico from Block B.