 In 1975 , Led Zeppelin 's double album Physical Graffiti was their first release on the Swan Song label . It consisted of fifteen songs , of which eight had been recorded at Headley Grange in 1974 and seven had been recorded earlier . A review in Rolling Stone magazine referred to Physical Graffiti as Led Zeppelin 's " bid for artistic respectability " , adding that the only bands Led Zeppelin had to compete with for the title " The World 's Best Rock Band " were the Rolling Stones and the Who . The album was a massive commercial and critical success . Shortly after the release of Physical Graffiti , all previous Led Zeppelin albums simultaneously re @-@ entered the top @-@ 200 album chart , and the band embarked on another North American tour , now employing sophisticated sound and lighting systems . In May 1975 , Led Zeppelin played five sold @-@ out nights at the Earls Court Arena in London , at the time the largest arena in Britain . 
