The 6th annual Rock Around The Park (rockabilly/psychobilly day) is this Sunday, Nov 3rd! Details can be found at http://www.rockaroundthepark.com more specifically at http://rockaroundthepark.com/trip-to-disneyland.html
There's also a pre-event on Saturday, Nov 2nd at The Juke Joint in Anaheim with bands and burlesque dancers. Details about that are at http://rockaroundthepark.com/pre-event.html
See you there!