Tsuyoshi Domoto (堂本 剛, Dōmoto Tsuyoshi; born April 10, 1979) is a Japanese idol, singer, songwriter, actor, and television personality. Along with Koichi Domoto (with whom he has no blood-relation), he is a member of Domoto, which is a Japanese duo under the management of Starto Entertainment (formerly of Johnny & Associates) and the record holder of Guinness World Records for having the record of the most consecutive number-one singles since their debut single.
Source: “Tsuyoshi Domoto”, English Wikipedia (CC BY-SA 4.0), excerpt