Looks like this happened during the Euro 2012 Soccer Championships.
From the YouTube description:
Football fans watching a pre-match dance item before last night’s showpiece final between the First XI and the S-League All-Stars were stunned when one of the dancers left the pitch, following a wardrobe malfunction which exposed her assets.
The performer, who could not be identified, was nearing the end of her dance routine when her silver-coloured tube top slipped. She immediately pulled her top back up and hurriedly left the field in front of more than 7,000 spectators at the Jalan Besar Stadium.
You all know the Los Angeles Memorial Coliseum, don’t you? The home of the USC Trojans and two summer Olympics. And now, apparently, it was the location for a porn video called “The Gangbang Girl #32.” (And if you haven’t seen The Gangbang Girl #31, we won’t spoil the the sequel for you.) And, surprisingly, no one actually gave permission to the company to film there.
We’re also not talking about a quick shot done with someone’s cell phone in a bathroom: the hard-core porn video features 40 minutes of group sex on the football field, which appears to have been shot at night, with tower lights blazing. But it doesn’t end there: the video also shows the stadium’s signature tunnel, as well as a sliver of the iconic arched entrance.
How the crew got permission to film in the public facility.
For those of you who missed it, Italy has been rocked over the past year with a major soccer match-fixing scandal with more than 50 people arrested so far, including Lazio captain Stefano Mauri.
Not Stefano, you say? Yes, Stefano. Our beloved Stefano allegedly went over to the dark side.
It’s gotten so bad, that the new premier of Italy, Mario “I’m Not the One Who Slept With Underage Prostitutes” Monti is suggesting that they best way to cure the problem of match-fixing in that country would be to completely suspend all soccer matches for “two or three years.” A so-called soccer “death penalty.”
Monti goes on to say that that’s just his personal opinion and is not legally binding, but it does raise a question that’s been on everyone’s mind: can you root out the undesirable elements in sports if you shut it down for years at a time? Or will the bad guys just go on to another sport (say women’s beach volleyball) and come back when the ban is over?
And what are Italian men to do with no pro soccer games? Stay home and talk to their wives? Hah!