between 750,000 to a million at their concert in Moscow 1991.
Pink Floyd - The Wall Berlin, Germany over 400 Thousand Attendees
Christian singer Carman and he had around 80,000 people.
121,382 in Central Park, September 28, 2003.
The band Queen drew the largest single concert crowd in Argentine history. Queen was one of the biggest stadium rock bands in the world.
The highest attendance for an Iron Maiden concert is something I couldn't find, but I would guess that it was at the 1988 Monsters of Rock Festival, which was approximately 107,000, the biggest crowd in the festival's history.
The Best Crowd We Ever Had was created in 2004.
I read somewhere that it was a free concert they held in Russia. The crowd was an estimated 1.6 million. It was held at Tushino airfield in Moscow. Brian said that people from the crowd could be seen in every direction on every horizon. Over 10 miles away people were complaining of the noise. (To put this into perspective, Woodstock was 400000 people).
Best. Concert. Ever. was created in 2009.
At the Summer Jam held at Watkins Glen on July 28, 1973, the Grateful Dead played to a crowd of approximately 600,000 people -- larger than Woodstock. The Allman Brothers Band and the Band were also on the bill. According to the Guiness Book of World Records, the Summer Jam was largest rock concert in history by attendance.
The largest crowd to ever witness an inauguration is estimated at 1.2 million for Lyndon B. Johnson.
Queen's largest crowd ever was at the Rock in Rio festival in Rio de Janeiro, Brazil in 1985, where they performed for an estimated crowd of 350,000 people.
On June 5th 2010, Snow Patrol's homecoming gig at Ward Park in Bangor attracted an audience of around 40 - 45,000 people, making it the largest gig to ever take place in Northern Ireland.