Question: Have musicians Hansi Kürsch and John Reis both performed as members of a band?
Sentence (from "Hansi Kürsch"): Hans Jürgen Kürsch, better known as Hansi Kürsch (born 10 August 1966 in Lank-Latum/Meerbusch, Germany), is a German musician best known for being the co-founder, lead vocalist, co-composer, and lyricist of power metal band Blind Guardian.
Relevant evidence: Yes