The world's first country a cappella group had a phenomenal start to their career, winning NBC's The Sing-Off in 2013. Since then, they've released several studio albums, including Country Evolution, which hit the No.4 spot on the Top Country Albums chart and featured unique Home Free takes on Dolly's '9 to 5', and 'The Devil Went Down to Georgia'.

Singer-songwriter Don McLean has more than his fair share of great songs to his name, but one stands head and shoulder above the others. Released in 1971, the epic 'American Pie' remains one of the great tracks in popular music history. Expect to hear that and more on one of McLean's live dates this year.