These days, top country acts are even outpacing the biggest names in mainstream pop music. Luke Bryan was the No. 2 best-selling artist of 2013 behind only Justin Timberlake, while Florida Georgia Line’s crossover smash “Cruise” was the No. 4 most downloaded song, topping hits like Lorde’s “Royals” or Katy Perry’s “Roar.” But the genre's top earner this year is Toby Keith, who pulled in a staggering $65 million for the second year in a row.