The most audiences at the Rockfestivals ? can anyone help me ?

Question:

The most audiences at the Rockfestivals ? can anyone help me ?

As far as Iam concerned:
a. Grand Funk Railroad in NY Shea Stadium 1971 = 350.000 audiences
b. Deep Purple & Black Sabbath in California Jam 1974 = 300.000 audiences
c. Led Zeppelin in Tampa Florida 1975 = 300.000 audiences
d. Deep Purple - Knebworth UK 1985 = 300.000 audiences

All of them collected people more than beatles ??

Best Answer - Chosen by Asker: There was one in Central Park, N.Y. that was the largest. Close to a million.