Alternative Rock

Tenacious D (often referred to as "The D" and sometimes introduced as "The Greatest Band in the world. Period.") is an American satirical rock duo formed by musicians and actors Kyle Gass and Jack Black in Los Angeles, California in 1994. Their music fuses vulgar absurdist comedy with rock music in a style that critics have described as "mock rock". The band first gained reputation in 1999, starring in a self-titled HBO TV series.

Ben "Slork" Jorgensen (born July 4, 1983 in Teaneck, New Jersey) is the lead singer and guitarist of the New Jersey band Armor for Sleep. He wrote the first Armor for Sleep songs during the summer after his first year in college, and recorded them as a demo cd for $100 at a local recording studio, playing all the instruments himself. He lives in Teaneck, New Jersey.He is of German, Danish, and Japanese descent, and is also Jewish.

There have been at least four bands called The Butterfly Effect: 1) Australian hard rock band
2) Swedish 90's electronic band
3) Thai Rock/indie band
4) Canadian alternative rock band (1999-2004)
(1) The Butterfly Effect is a hard rock band from Brisbane, Australia, formed in 1999. They have built a reputation for being one of the most exciting and hard working live acts in Australia. Since February 2002 the band has toured Australia and Europe extensively knocking up over 800 national and international performances as a headlining act.