OMG
It has to be Ice Cream Man by Van Halen. In highschool, this total idiot who was stalking me stood in the alley under my window. He had his buddy, who THOUGHT he could play guitar with him. His buddy played "music" while this guy "sang" that song to me. I laughed so hard I almost pissed myself. Now I can't hear that song without thinking of that dilbert.