Hans Jürgen Kürsch, better known as Hansi Kürsch (born August 10, 1966 in Lank-Latum, Germany) is the lead vocalist of power metal band Blind Guardian. Together with André Olbrich, he is also the principal songwriter for the band. He was also the bassist in Blind Guardian until the 1998 album Nightfall in Middle-Earth. His more common name, Hansi, is actually a diminutive of Hans Jürgen. A signature of Kürsch's songwriting is his practice of doubletracking his own voice innumerable times in complex, overlapping harmonies on his recordings, effectively creating the atmosphere of a huge choir.