Roots of 2AM

2PM (Korean: 투피엠) is a South Korean boy band formed by JYP Entertainment in 2008 composed of six members: Jun. K, Nichkhun, Taecyeon, Wooyoung, Junho, and Chansung. Originally a seven-piece group, Jaebeom left the band in 2009. Unlike most Korean boy bands at the time, 2PM constructed a tough and masculine image through their intense performances often featuring acrobatic stunts and sex appeal. As a result, 2PM is known for creating the jimseung-dol phenomenon within South Korea. As the group grew older, they stopped incorporating acrobatics in their choreography routines and transitioned into a more gentlemanly image. The group has achieved commercial success in several regions in Asia, including South Korea, Japan, and Thailand, as a leading figure of the Korean Wave.

Lee Gi-kwang, known professionally as Gikwang or Kikwang, is a South Korean singer, songwriter and actor. He originally debuted as solo singer with the stage name AJ, releasing his first mini album First Episode: A New Hero on April 4, 2009. In October 2009, he debuted as the main dancer, visual and a lead vocalist of boy group Beast, which was renamed Highlight in February 2017.