 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 . With RIAA @-@ certified sales of 111 @.@ 5 million units , they are the second @-@ best @-@ selling band in the United States . Each of their nine studio albums placed in the top 10 of the Billboard album chart and six reached the number @-@ one spot . Rolling Stone magazine described them as " the heaviest band of all time " , " the biggest band of the Seventies " , and " unquestionably one of the most enduring bands in rock history " . 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 . 
