The Metal Brothers (鋼鉄兄弟, Kōtetsu Kyōdai) are a vocal group composed of Hironobu Kageyama and Masaaki Endoh as the fictional Metal #1 (鋼鉄1号, Kōtetsu Ichigō, born February 18, 2961) and Metal #2 (鋼鉄2号, Kōtetsu Nigō, born August 28, 2967), respectively, debuting in 2997 (each year is 1000 years later than the actual date).
[1] Together, the Metal Brothers released two full-length albums of covers of anime songs and two singles of original songs.
[2] 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.
This article about a Japanese band or other musical ensemble is a stub.