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. 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.