Masaaki Endoh
The are a vocal group composed of Hironobu Kageyama and Masaaki Endoh as the fictional and , respectively, debuting in 2997 (each year is 1000 years later than the actual date). Together, the Metal Brothers released two full-length albums of covers of anime songs and two singles of original songs. They have also performed various original songs for the "Super Robot Wars" series. The group has not released any more music since the inception of JAM Project.