Lady A walk the line dividing modern country and adult contemporary, specializing in softer songs laden in melody and harmony. "I Run to You," their first Country number one, introduced this blend, but its 2009 sequel, "Need You Now," turned Hillary Scott, Charles Kelley, and Dave Haywood into crossover stars as it peaked at number two on Billboard's Hot 100. The trio continued to reach the pop Top 40, all the while racking up a series of number one singles on Billboard's Country Airplay that offered variations on their soothing country-pop into the 2020s: "American Honey," "J...