They were an act people truly loved seeing, and spontaneous laughter & applause would usually ensue whenever they'd make an appearance.
If you're a bit hazy on this comedy act, here are a few clips that may jog your memory. If nothing else, they will give you a good feel for Willie and Lester's shtick..
If you're wondering, Willie and Lester are both alive and well. You can see what's new with them at their website... Willie and Lester.com