This is Bill Monroe performing Blue Moon of Kentucky (1946) which he wrote and performed as a Blue Grass piece. When asked what he thought about Elvis’s rendition, he paused, scratched his chin (I’m fashioning the text here, readers) and said “them’s checks is powerful.” Love that mandolin.
And I love what Elvis did with Blue Moon of Kentucky; here he’s singing it at the Louisiana Hayride, the radio station that competed with The Grand Ole Opry back in the day, 1954.
And I can’t leave out Nanci Griffith’s Once in a Very Blue Moon because we sat in the front row at Roaring Brook Nature Center Coffee House and chuckled while she explained what a blue moon was. She looked pretty much as she does here in the youTube.