2PM (Korean: 투피엠) is a South Korean boy band formed by JYP Entertainment. The group is composed of six members: Jun. K (formerly known as Junsu), Nichkhun, Taecyeon, Wooyoung, Junho and Chansung. Originally a seven-piece group, former member and leader Jaebeom temporarily left the group due to controversies that stemmed from his posts in MySpace in 2009 before being announced to have left both the band and the agency in early 2010.
The history of 2PM started when Korean musician Park Jin-young formed an eleven-member band known as One Day through the documentary series Hot Blood Men. Eventually, the band was split into the hip hop group 2PM and a similar but independent group known as 2AM. 2PM debuted with the song "10 Out of 10" (10점 만점에 10점, lit. "10 Points Out of 10 Points"), which showcased their acrobatic dance styles. They then achieved their first number 1 single with "Again & Again". Both singles were featured on their first studio album, 01:59PM, which was released in 2009. The band went on to release another Korean album, known as Hands Up, in 2011. They made their Japanese debut later that year with Republic of 2PM. After more than a year, the group returned in 2013 with their third studio album Grown. In early September 2014, 2PM returned with their fourth studio album Go Crazy. On June 15, 2015, 2PM made a comeback with their fifth studio album No.5. After much anticipation, 2PM returned on September 13, 2016 with their sixth studio album Gentlemen's Game.
Following touring for Gentlemen's Game, the group took an official hiatus in July 2017 due to mandatory military service. Following the members' discharge, 2PM returned with their seventh studio album Must in June 2021.