"D-90" is an album by the South Korean artist D.O., a member of the popular boy band EXO. Released on July 26, 2021, the album features a mix of genres, showcasing D.O.'s vocal abilities and artistic style. It includes several tracks that highlight his emotional depth and musical versatility. The album's title, "D-90," signifies the countdown to a significant event in D.O.'s career. It received positive reviews from fans and critics alike, praising its production quality and D.O.'s performance. The release further solidified his position as a solo artist in the music industry.