This might be coolest performance of this song I've ever seen. Actually, one of the coolest performances of ANY song. 

This was last April at my previous radio station in Omaha. (Please note how much cooler our Studio C is than this simple room.) :) The band was in to just do an interview. Well, they dug the crowd and wanted to perform one song. This is what they chose. We weren't prepared to record sound or video. Luckily, a video camera was nearby and a very crude recording happened. The beach ball is clearly the star. 

Thought it was worth sharing.

UPDATED: Found some great footage of "Carry On" at Roy Wilkins as Fun. kicked off their tour here in our fair city. Footage is great, but the crowd doesn't seem to into it. ;)