T-Max (Hangul: 티 맥스; RR: Ti Maegseu), stylized T-MAX or T.max, was a South Korean pop music group formed in 2007 under the label 2Step Entertainment (later Planet 905). The group began as a trio, where the "T" in its name was derived from the words "triple" and "trinity". T-Max released an album, an EP, five singles, some of which have songs different from its title, and several soundtrack singles for television shows such as Boys Over Flowers, Detectives in Trouble, and Master of Study.