Before this tour , Robert Plant shaved off his beard , a style which he and the rest of his bandmates had adopted the year before . John Paul Jones followed suit a month later . However , Jones would later grow a beard in late 1972 and keep it until March 1973 , and then have a mustache for part of the 1973 North American Tour , and also have a beard from late 1975 to early 1977
1973 North American Tour
Led Zeppelin North American Tour 1973
Led Zeppelin North American Tour 1971