Hair-popping: Guitar-playing technique invented and perfected by Nigel in which he draws "organic overtones" when his hair touches the guitar. Used extensively on "Christmas with the Devil." (GW) During a 1992 interview, Nigel explained to a fan how its done: "Wash your hair exactly once a week on Mondays and lay out on big nice fluffy Turkish towel. It’s like playing with a kitten. Treat it like your best friend and you’ll find the harmonics are crystal clear." (RL)