I was in the other room when I first heard it and came flying in and was like "What??!!.....is CCR suddenly 30 years old again?" That was so bad-ass....it totally looked like they were having a blast playing it.
The last time something like that hit me so profoundly was when during the 9/11 benefit, Billy Joel did "New York State of Mind" all piano-man stylee.....that moved me big-time. Glad I saw it.