Daryl Hall, lead vocalist of the most successful singing duo of all time, Hall & Oates, turns 64(!) today. I interviewed the pair for a Billboard special honoring their 30th anniversary in February 2003—Daryl refused to do the interview with the two together, since apparently he loathes his partner. On the phone, Hall was kinder than I expected; Oates was warm and smart as a whip. To read the full story, click here.