 Apart from lead vocalist, Quiana Parler, four of the group's members, Quentin Baxter, Kevin Hamilton, Clay Ross, and Charlton Singleton, previously played together in the Charleston jazz quartet The Gradual Lean in the late 1990s.Their debut album, "Ranky Tanky", was released in October 2017.By the week of February 10, 2018, it was listed number one in the "Billboard" jazz charts.