CHEMISTRY is a Japanese vocal duo formed in 2001 through the Asayan audition project. Consisting of 堂珍嘉邦 and 川畑要, the group is known for a polished blend of contemporary R&B and J-pop built on smooth harmonies, refined arrangements, and a mature melodic sensibility.
Since its 2001 debut under Defstar Records, CHEMISTRY has stood out among early-2000s Japanese male vocal acts for balancing accessibility with technically polished vocal performance. Its music sits at the intersection of J-pop and R&B, and the duo developed a signature style centered on emotional delivery and close vocal interplay. Across its career, CHEMISTRY has maintained a reputation for consistency and professionalism, with a catalog shaped by melody-driven songwriting and harmony-rich performances. That combination made CHEMISTRY a notable reference point for listeners interested in Japanese vocal pop, contemporary R&B, and artists connected to anime music culture.