DEEP, formerly known as COLOR, is a Japanese chorus group under LDH, affiliated with Sony Music Associated Records. The group initially formed in 2004 with members KIKURI, YORK, and TAKA, led by EXILE's ATSUSHI. They debuted as COLOR in December 2004 with the single "Special Love." Following significant lineup changes in 2006, TAKA became the leader, and new members YUICHIRO, KEISEI, and RYO were introduced. This rejuvenated COLOR released their first single "Namida ga Ochinai You ni" in April 2007. In 2009, the group underwent another transformation, rebranding themselves as DEEP and announcing a shift to self-production, distancing themselves from ATSUSHI's production. They launched under the new name with the single "Endless Road" in October 2009. By 2015, they had moved to Sony Music Associated Records. RYO announced his retirement from the entertainment industry in 2018, officially leaving after a final fan club event on December 31, marking another significant change in the group’s dynamic. They released their 20th single"Nando demo" in 2024.
