SQUARE ONE is the debut single album by South Korean girl group BLACKPINK. It was released digitally on August 8, 2016 by YG Entertainment. The lyrics were written by B.I, Teddy Park, Bekuh Boom while the music was composed by Teddy Park, Future Bounce and Bekuh Boom. Debut album SQUARE ONE with which BLACKPINK makes their first public appearance boasts the utmost quality, as YG’s best producer TEDDY worked on the album for the past two years. The unique sound differentiated from that of other girl groups well-reveals BLACKPINK’s outstanding talent.