Roots of Wonder Girls

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.

2AM is a South Korean boy band, that consists of Jo Kwon, Lee Chang-min, Lim Seul-ong, and Jeong Jin-woon. The band was formed by JYP Entertainment through the Mnet reality show Hot Blooded Men, which spawned the eleven-member boy band One Day; 2AM primarily perform ballad songs while their brother group 2PM performed more dance-focused music. With the addition of Changmin from Big Hit Entertainment, now known as Big Hit Music, the group was co-managed by JYP and Big Hit from 2008 to 2014. They officially debuted on July 11, 2008, on KBS' Music Bank, performing their debut single "This Song". The group also debuted in Japan with the single "Never Let You Go: Shindemo Hanasanai" in January 2012.