Systems in Blue (SIB) is a German pop band, with the following band members, Rolf Köhler, Michael Scholz, and Detlef Wiedeke. The band members started in the beginning of 60's, working in different bands in 60's and 70's, Rolf Köhler worked for several different artists such as Blonker, Uriah Heep, Blind Guardian, Helloween, Grave Digger, Gamma Ray, Iron Savior, Savage Circus, Tokyo, Mephistopheles, and Kin Ping Meh (featuring Geff Harrison) among others.