I’ve ranked here the top 20 greatest hits or best of collections ever. It’s based on their published totals of worldwide sales as reported by bestsellingalbums.org.

Country music in the '70s created American icons including Dolly Parton, Kris Kristofferson and Charley Pride. See which hits made the Grand Ole Opry's list of the 100 greatest songs.

The Grand Ole Opry in Nashville is marking its 100th anniversary by celebrating the 100 all-time greatest country songs and the chance to vote for the No. 1 song released in the Opry's history.