Dennis Edwards, a former frontman of The Temptations whose gravelly and commanding vocals powered a string of chart-topping R&B hits, has died. ?He is now at peace, and our love and prayers go out to his family,? Otis Williams, the last original surviving member of the Motown group, said in a statement on Facebook. Edwards, who replaced the silky-voiced David Ruffin as lead singer of The Temptations in 1968, sang lead on hits like ?Papa Was a Rollin? Stone? and ?I Can?t Get Next to You.?