Led Zeppelin were an English rock band formed in London in 1968. The group consisted of guitarist Jimmy Page, singer Robert Plant, bassist and keyboardist John Paul Jones, and drummer John Bonham. The band's heavy, guitar-driven sound has led them to be cited as one of the progenitors of heavy metal. Their style drew from a wide variety of influences, including blues, psychedelia, and folk music. Led Zeppelin are widely considered one of the most successful, innovative, and influential rock groups in history. They are one of the best-selling music artists in the history of audio recording; various sources estimate the group's record sales at 200 to 300 million units worldwide. They were inducted into the Rock and Roll Hall of Fame in 1995; the museum's biography of the band states that they were "as influential" during the 1970s as the Beatles were during the 1960s.Genres - Hard rock, blues rock, folk rock, heavy metal. Associated acts - The Yardbirds, The Honeydrippers, Page and Plant.