an amazing prog/folk/hard/blues rock band founded in 1968 by the most bad ass flautist ever, Ian Anderson. their first album was This Was, followed by Stand Up, Benefit, Aqualung,(their most commercial album, but quite possibly one of the best), Thick As A Brick, and countless others. The only two consistant band members since the band's inception are Martin Barre (guitarist) and Ian Anderson(singer, flautist).
to the faggot who said the beatles are heavier than Tull, listen to My God, Aqualung, Hymn 43, Cross eyed Mary, Locomotive Breath, or To Cry You A Song. all great, hard rock Tull songs.
Jethro Tull rules.