Not sure if you guys will like this or not, but it's my band at a show we played last month. It was an improv jam we did and our drunk friend got on stage and started well....making an ass of himself on the mic :-P but its fun
http://www.youtube.com/watch?v=_o4HZGPs3Eg&NR=1
But this is just a 3 piece usually, and we do more organized songs.