2PM is a six member South Korean boy band formed by JYP Entertainment. The current members are Jun. K, Nichkhun, Taecyeon, Wooyoung, Junho and Chansung. Former leader Jay Park officially left the group in early 2010. The members of 2PM started when Korean musician Park Jin-young formed an eleven-member band known as One Day. Eventually the band was split into 2PM and a similar but independent group known as 2AM. 2PM debuted with the song "10점 만점에 10점 (10 Points Out of 10 Points)", which showcased their acrobatic dance styles.