Led Zeppelin were an English rock band formed in London in 1968. The group's heavy, guitar-driven sound, rooted in blues on their early albums, has drawn them recognition as one of the progenitors of heavy metal, though their unique style drew from a wide variety of influences, including 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. Each of their nine studio albums placed on the Billboard Top 10 and six reached the number-one spot. Rolling Stone magazine described them as “the heaviest band of all time”, “the biggest band of the '70s” and “unquestionably one of the most enduring bands in rock history”.