From This Might Be A Wiki

Fan Recaps and Comments:

Mark Pender played some high energy trumpet parts. During one song they had the audience do a humongous conga line- everybody just grabbed the shoulders of the person in front of you. Attendance wise, the place was packed.

Brian Levine:

This was the "They Might Be Giants - Other Thing", no? It was a while ago (writing this on 10/25/2009), but I'm pretty sure about that. It was just John and John and Pender on stage for most of the show. Then Dan Miller (on an acoustic?) for a few songs. Much fun!