Ñu, also known as José Carlos Molina-Ñu, are a Spanish hard rock band formed in 1974 in Madrid. Their music style, often described as medieval rock, has medieval music, celtic rock and heavy metal influences. The band have experienced multiple line-up changes, with vocalist José Carlos Molina being the only constant presence in the band through the years. The flute predominance in their sound has been compared with Jethro Tull's style, but playing a way heavier sound they are in fact a predecessor of folk metal. As time went by, their style tended to be less folk and more heavier. Their lyrics usually are about medieval castles, riders, villains and heroes.