Anthemic rock songs are just good to sing along to - and this song has a particularly catchy chorus with a good "Ohh ohh ohh, ohh ohh ohh" as a build up where everyone in the stadium can scream their lungs out, so I'm not really surprised.

It's like the mystery of why they play Neil Diamond's "Sweet Caroline" at Red Sox home games. There's a distinctive trumpet bit after the first line of the chorus where the spectators can go "pah pah pah" and the second line goes "Good times never seemed so good" and everyone shouts back, "So good, so good, so good" in the pause before the third line. Absolutely bloody nothing to do with baseball or Boston, but it's become de rigeur.