Bill Robinson and The Quails were an American doo-wop group active during the 1950s. Their music, characterized by smooth harmonies and emotive vocals, helped define the doo-wop sound of the era. The group's most notable member was lead singer Bill Robinson, whose powerful voice was a distinctive element of their sound. Their signature work, the song "The Things She Used to Do," is considered a classic of the doo-wop genre and reflects their significant contribution to mid-century American popular music.