You Must Walk the Line
Eddy Arnold started touring the US and appearing on the Grand Ole Opry with Pee Wee King when he was 22 years old, forming his own band shortly thereafter. He recorded this song for Bluebird Records in 1945, and it sold so well that they decided to move him up to their big label - Victor. In 1999, at the age of 81, he dueted with LeAnn Rimes on his signature song "Cattle Call," notching up six consecutive decades of country records that would chart. I'd say he walked the line!