Pentagon is a boy band from South Korea and formed by Cube Entertainment in 2016.
Pentagon members first compete on the survival show Pentagon Maker. The winner from the show, debuted as Pentagon in 2016 with self-titled EP. In 2017, the fgroup continue to released EP "Demo_01" and "Demo_02". Hui, the leader, also produced the album. In the same year, Pentagon made their debut in Japan. Their breakthrough song is in 2018 with the song "Shine (빛나리)" from the album "Positive". The song slowly charted and become Top 10 hit on Billboard's World Digital Song. Following it success, Pentagon released the album in Japanese version. However, in the end of 2018, one of the member, E'Dawn left the group and make Pentagon with 9 members.