Question: The country music artist who recorder a cover cersion of Am I That Easy to Forget which reached #11 country in 1960 started out as part of which band as a teenager in the late 1940s? 
Sentence (from "Skeeter Davis"): Mary Frances Penick (December 30, 1931 – September 19, 2004), known as Skeeter Davis, was an American country music singer who sang crossover pop music songs including 1962's "The End of the World".
Relevant evidence: No