Darryl & Don Ellis was an American country music duo formed in Beaver Falls, Pennsylvania in 1992. The duo consisted of brothers Darryl Ellis Gatlin and Don Ellis Gatlin. Their highest charting single, "No Sir," peaked at No. 58 on the Billboard Hot Country Singles & Tracks chart in 1992. Don Ellis wrote songs on Blake Shelton's first two albums, and later founded a second band called Savannah Jack.