One of the "dirtiest and rowdiest crowds" to ever grace Heinz Field in Pittsburgh overshadowed Kenny Chesney's "No Shoes Nation Tour," and some of it was caught on video.

Before, during and after the concert, more than 70 people were arrested for either disorderly conduct, public intoxication or aggravated assault. CBS Pittsburgh quotes police as saying at least 10 large fights broke out (including the one in the video above).

Much of the problem was directed at the need to open the gates for parking at 9 a.m. because traffic was so backed up. That meant there were eight hours from the time the gates opened until opening act and East Texas native Kacey Musgraves took the stage at 5 p.m.

It reportedly took 15 hours for cleanup crews to get rid of all the trash, which in addition to alcohol containers also included homemade toilets, couches and even portable pools. CBS reports the amount of trash was as much as five times more than after a Pittsburgh Steelers game, and even many police didn't want to work the event due to the reputation the No Shoes Nation concerts are getting.

“The Kenny Chesney crowd is the most difficult crowd for our staff to work with of any of the events of the year,” Merril Stabile, president of ALCO Parking, told CBS. “We had a hard time getting police — a lot of police didn’t want to work this event."

According to reviews, the show still was a stellar one. In addition to Chesney and Musgraves, the tour also features country superstar Eric Church and Texas' own Eli Young Band.