Róisín Murphy was getting her nails done. “Shellac,” she said, the hum of the salon in the background vibrating over the phone line when we connected recently. The Irish electronic diva was in her adopted hometown, London, pondering colors. She had been in a green mood lately, she said, but it might be time for a change. She paused over an iridescent chartreuse that caught her eye. “That’s a little bit trampy, now that I’m looking at it,” she said, sounding pleased as she mulled over her selection.
