2PM (JUN. K, Nichkhun, Taecyeon, Wooyoung, Junho, and Chansung) have been on hiatus since 2017 to fulfill their military obligations. Following the approval of his discharge from the military this month, when Jun-ho, the last runner in March, finishes his military service, the six members finally return to their fans as a whole.

They debuted in September 2008 with their first single "Hottest Time Of The Day" and title track "10 Out of 10," showing off their irreplaceable presence throughout their appearance and opening a new page in K-pop.

In the second year of their debut, with a ferocity that was not commonly seen on the stage, the modifier was born, and the unrivaled charm with a sharp stature, a solid body, and an unconventional concept was greatly loved by the public. In particular, in the performance of the first album title song'Heartbeat' (Heartbeat) in 2009, a choreography for building a human tower based on acrobatics, ending poses expressing the heartbeat by tearing clothes, etc., in their first full-length album "Heartbeat" performance in 2009.