Playoff Hockey Pool

OK, I've heard "Gloria" a few times but no one's explained it.
Alexander Steen, Joel Edmundson, Robert Bortuzzo, Jaden Schwartz and Robby Fabbri were watching the Eagles/Bears NFC Wild Card game in Philadelphia in January when a DJ played ‘Gloria’ during a commercial break.
“This one guy looked at the DJ and said 'keep playing Gloria!', so they kept playing it. Everyone would get up and start singing and dancing. We just sat back and watched it happen. Right there we decided we should play the song after our wins. We won the next game, we got a shutout, so we just kept on playing it,” Edmondson told stlouisblues.com.