Arriving at the height of bro country's peak in the mid-2010s, Maddie & Tae skewered that genre's down-home swagger with "Girl in a Country Song," a sharp satire of all the sexist clichés littering the airwaves. The single became a hit in its own right, reaching number one on Billboard's Country Airplay charts during 2014, making Maddie Marlow and Taylor Dye genuine country stars. Start Here, their 2015 debut, kept Maddie & Tae on the charts, thanks in part to "Fly," a bittersweet ballad which played to the duo's strengths as harmonizers and canny country-pop synthesizers. The...