Heavy metal music styles in its early years, but by 1969 vocalist Ian Gillan and guitarist Ritchie Blackmore had led the band toward the developing heavy metal style. In 1970, Black Sabbath and Deep Purple scored major UK chart hits with "Paranoid" and "Black Night", respectively. That same year, two other British bands released debut albums in a heavy metal mode: Uriah Heep with "...Very 'Eavy ...Very 'Umble" and UFO with "UFO 1". Bloodrock released their self-titled debut album, containing a collection of heavy guitar riffs, gruff style vocals and sadistic and macabre lyrics. The influential Budgie brought the new metal sound into
Heavy metal music use of narcotics. In the wake of the new wave of British heavy metal and Judas Priest's breakthrough "British Steel" (1980), heavy metal became increasingly popular in the early 1980s. Many metal artists benefited from the exposure they received on MTV, which began airing in 1981—sales often soared if a band's videos screened on the channel. Def Leppard's videos for "Pyromania" (1983) made them superstars in America and Quiet Riot became the first domestic heavy metal band to top the "Billboard" chart with "Metal Health" (1983). One of the seminal events in metal's growing popularity was the 1983 US Festival