 But there have been some amazing collaborations over the course of black music history. And certainly Donny Hathaway and Berta Flack are at the top of that list. But so are Marvin Gaye and Tammy Terrell. So we are pleased to have the opportunity today, all three hours of our show, to celebrate some of the best of the artistic genius of Marvin Gaye. In this hour, as promised, two conversations on the B-side.