The fourth show on sunday officialy done because of the large demand, was not added by "Popular Demand". The show was calculated to be a part of the tour from the beginning.
The MSG Contract
The map advance booking stared on May the 7th 1972. The ticket prices were between 5 and 10$. Becky Tewell, waited 46hours in a line to be the first to get a ticket.The advance booking started 2 hours before they should open because due to the large crush. Within only two days all 80,000 tickets were sold. However on the first day of the tickets sells, 30,000 fans were waiting at the same time lined up for tickets.