In 1941 Miller was hired to play the "King Biscuit Time" show, advertising the King Biscuit brand of baking flour on radio station KFFA in Helena, Arkansas, with Lockwood. The program's sponsor, Max Moore, began billing Miller as Sonny Boy Williamson, apparently in an attempt to capitalize on the fame of the well-known Chicago-based harmonica player and singer Sonny Boy Williamson (birth name John Lee Curtis Williamson, died 1948). Although John Lee Williamson was a major blues star who had already released dozens of successful and widely influential records under the name "Sonny Boy Williamson" from 1937 onward, Miller would later claim to have been the first to use the name. Some blues scholars believe that Miller's assertion he was born in 1899 was a ruse to convince audiences he was old enough to have used the name before John Lee Williamson, who was born in 1914.