Well, the best singalong I"ve ever participated in was when the Violent Femmes played Santa Fe. I, personally, knew every one of the songs they did and I sang along with great enthusiasm, clapping, of course on the two and four.

It's easy to sing along when you're jammed together like sardines and the decibel level is about that of jet engines idling and nobody gives a s**t what the person next to 'em is doing.

(I did get pushed into the mosh pit, which was a bit of an adventure. I did not mosh. I escaped.)

ww