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'''Jethro Tull''' are a British rock band often classified as progressive rock, although they were heavily influenced by blues and folk music. Their lead singer, [[Ian Anderson]], is well-known for playing the [[flute]] and for his quirky stage-presence. Their most famous album is [[Aqualung]] (1971).
==Trivia==
Jethro Tull won the first Grammy Award for Heavy Metal performance, causing a great deal of controversy. The band did not show up to collect their award, but released a full-page newspaper advertisement the next day stating that "The flute is a heavy metal instrument."