A HUGE drum circle.

Wayne Coyne from the Flaming Lips came out IN A GIANT BUBBLE. If you'll look closely toward the left side of the photo, you will see the bubble along with wanyne in it. woahhhh.... and yes, he is crowd surfing in it.
Bob Schneider and his band.
Something about a secret pocket during the Truckstop Honeymoon show.
YONDER MOUNTAIN STRING BAND!