Uriah Heep are an English rock band formed in London in 1969 and are regarded as one of the seminal hard rock acts of the early 1970s. Uriah Heep's progressiveheavy metal fusion's distinctive features have always been massive keyboards sound, strong vocal harmonies and (in the early years) David Byron's quasi-operatic vocals. Twelve of the band's albums have made it to the UK Albums Chart (Return to Fantasy reached No. 7 in 1975) while of the fifteen Billboard 200 Uriah Heep albums Demons and Wizards was the most successful (#23, 1972). In the late 1970s the band had massive success in Germany, where the "Lady in Black" single was a big hit. Along with Black Sabbath, Deep Purple and Led Zeppelin, Uriah Heep has become one of the top bands in the early 1970s and also people like to call these four bands "The Big 4" of Hard Rock.