That's awesome And I was wondering who the guitar guy was, after a bit of looking around the net, it's the father of Synyster Gates, the guitarist for Avenged Sevenfold. There's your bit of interesting yet useless trivia for today
The Wikipedia article for Jeff Dunham: Jeff and Achmed did a Christmas special in which Achmed sang "Jingle Bombs", accompanied by "guitar guy" aka Brian Haner, comedian and father of Synyster Gates, lead guitarist of the band,Avenged Sevenfold And Brian Haner's website confirms that