I once saw an old advert somewhere but I can't remember what it was about. A woman sings "Non, je ne regrette rien" in full Piaf rasp. The audience are discomforted by this. Someone hands her something to drink. She resumes her song, but in a soft, breathy Francoise Hardy-like manner. It might have been Heineken, a la "Water in Majorca", but I'm not sure.