ROBERT PLANT AND JIMMY PAGE OF LEGENDARY ROCK BAND LED ZEPPELIN PERFORM AT NASSAU COLISEUM ON THEIR 1975 NORTH AMERICAN TOUR | PHOTO: SHUTTERSTOCK

When Led Zeppelin came to Pittsburgh in 1970, fans went so wild that police rushed into the crowd.

Three years and a huge increase in fame later, the band was back in town, playing to a crowd of 40,000 at Three Rivers Stadium on July 24, 1973. It was the largest crowd to ever attend a concert in Pittsburgh at the time. The 15-song set included “The Song Remains the Same,” “Stairway to Heaven” and “Whole Lotta Love.”

According to an article in the Tribune-Review, fans without tickets to the sold-out show broke through chain-link fences at Gates A and B to force their way into the show. Others were held back by high-pressure fire hoses.

“At 8 p.m., when the show was supposed to start, the migration began, and as more and more youths ignored requests to stay where they were, scooting over the railing and dugouts, barrels were knocked over and one irate guard, sans cap, picked up an empty barrel and slugged a boy on the back,” according to a review in the Pittsburgh Press.

The concert was reportedly delayed 53 minutes for order to be restored. A dozen teenagers were treated for minor injuries.

The band played a final concert in Pittsburgh at the Civic Arena on Feb. 1, 1975.