performances. Saturday evening's disturbances were particularly significant, prompting producer George Wein, who feared a riot, to announce that the Sunday evening Led Zeppelin appearance was cancelled. That show was allowed to go forward as initially scheduled after much of the overflow crowd had left the city, following the cancellation announcement. 1970s The 1970 festival was three days instead of the usual four with an estimated attendance of 40,400. Promoter George Wein reverted to an all-jazz policy after he stated the previous year had "maybe too much rock." On the first day there was a tribute to Louis Armstrong featuring Dizzy Gillespie, Bobby Hackett, Joe Newman, Wild Bill Davison, Jimmy Owns, and Ray Nance. Mahalia Jackson made a rare festival appearance to pay respects to Armstrong. Saturdays performers included Nina Simone and the Herbie Mann Quintet with Ike & Tina Turner closing out the night. The festival concluded on Sunday with performances from Roberta Flack, Gene McDaniels, Buddy Rich and Ella Fitzgerald. For 1971, the festival booked the rock group The Allman Brothers Band alongside an otherwise predominantly jazz and soul-oriented bill that included performances by Aretha Franklin, Ray Charles, Duke Ellington, Roberta Flack, Charles Mingus, Ornette Coleman, Dionne Warwick, Dave Brubeck, King Curtis, Dizzy Gillespie, and Herbie Mann, as well as the jazz-fusion groups Chase, Soft Machine, and Weather Report. Many more fans were drawn than Festival Field could accommodate. On the second night, after the recording of what would become The Dave Brubeck Quartet featuring Gerry Mulligan - The Last Set at Newport, over 12,000 people on the adjacent hillside crashed the fence during Dionne Warwick's performance of "What the World Needs Now Is Love". The festival was halted after the stage was rushed and equipment destroyed. The festival would not return to Newport in 1972. Moving to New York City In 1972, festival producer George Wein transplanted the festival to New York City, calling it the Newport Jazz Festival-New York. An expanded format involved multiple venues, including Yankee Stadium and Radio City Music Hall, and comprised 30 concerts with 62 performers including Dave Brubeck, Ray Charles, Duke Ellington, Roberta Flack, and Dizzy Gillespie. This format continued for the next years, but Wein missed the outdoors of Newport which the venues of New York City failed to duplicate. In 1977, Wein worked with the city of Saratoga Springs, New York, to move the festival to the Saratoga Performing Arts