Rainbow

Polydor is a record label owned by Universal Music Group, headquartered in the United Kingdom. Polydor was originally an independent branch of the Deutsche Grammophon Gesellschaft. Its name was first used as an export label in 1924, the British and German branches of the Gramophone Company having... severed their ties during World War I. Deutsche Grammophon claimed the rights to the His Master's Voice trademark for Germany, where HMV recordings were released under the Electrola trademark. In turn, DGG records exported out of Germany were released on the Polydor label. Polydor became a popular music label in 1946 while Deutsche Grammophon became a classical music label. The German rights to the His Master's Voice trademark was sold by Deutsche Grammophon to the Electrola Records unit of EMI in 1949. Polydor remained Deutsche Grammophon's export label, including classical music, in France and the Spanish-speaking world for the remainder of the long-playing era, as a result of language and cultural concerns. In the early 1960s orchestra leader Bert Kaempfert signed unknowns Tony Sheridan and the Beat Brothers - who would later become famous as The Beatles - to Polydor.
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Heavy metal is a genre of rock music that developed in the late 1960s and early 1970s, largely in the Midlands of the United Kingdom and in the... United States. With roots in blues rock and psychedelic rock, the bands that created heavy metal developed a thick, massive sound, characterized by highly amplified distortion, extended guitar solos, emphatic beats, and overall loudness. Heavy metal lyrics and performance styles are generally associated with masculinity and machismo. The first heavy metal bands, such as Led Zeppelin, Black Sabbath, and Deep Purple, eventually attracted large audiences, though many were critically reviled , a status common throughout the history of the genre. In the mid-1970s Judas Priest helped spur the genre's evolution by discarding much of its blues influence; Motörhead introduced a punk rock sensibility and an increasing emphasis on speed. Bands in the New Wave of British Heavy Metal such as Iron Maiden followed in a similar vein. Before the end of the decade, heavy metal fans became known as "metalheads" or "headbangers".
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