Led Zeppelin was scheduled to conclude their 1977 US Tour at the stadium , but the final 7 concerts of the tour were cancelled , due to the death of Robert Plant 's 5-year-old son Karac . The original Led Zeppelin never played in the US again , although the surviving members performed at Live Aid
1977 US Tour
Led Zeppelin North American Tour 1977
John F. Kennedy Stadium (Philadelphia)