There are at least 5 artists that go by "Blackmail" 1. German indie rock band 2. New York City funk/rock band 3. Greek neo-psychedelic rock band 4. Swedish hard rock/prog rock band 5. Detroit Ghettorock/hard rock/funk band 6. Hardcore Punk band from Sofia, Bulgaria 7. Hungarian Crust-Punk band. 1.) Blackmail is a German indie rock band from Koblenz, Germany which was started briefly in 1994 by singer Aydo Abay, brothers Kurt Ebelhäuser (lead guitars) and Carlos Ebelhäuser (bass) and drummer Mario Matthias.