Following the pair of concerts that Roger Waters is performing in Mexico City, a free concert has been announced in the middle of the city before the production heads north of the border to the pair of weekends to be held at Indio, California. The concert takes place at 8pm on October 1st, at the Zócalo.

The Zócalo is the common name of the main square in central Mexico City. The plaza used to be known simply as the "Main Square" or "Arms Square," and today its formal name is Plaza de la Constitución (Constitution Square).

As a guide to capacity, Paul McCartney gave a free concert at the location on May 10th, 2012 in front of 250,000 people as a part of his On The Run Tour. It is not unreasonable to consider that Roger might attract a similarly sized audience.

As with his other shows in Mexico, the show poster gives some clear indications as to what the set list might contain, with stylised depictions of (from left to right) The Dark Side of the Moon, Wish You Were Here, Animals and The Wall. No huge surprises there, but will there be some other surprises, such as material from his new, work-in-progress album? Not long to wait to find out!