Which bluegrass classic by Bill Monroe was covered by Elvis Presley, and also on Alan Jackson's 2013 Bluegrass Album?
The Bluegrass Album (Alan Jackson album): The Bluegrass Album is the nineteenth studio album, and the first bluegrass album by American country music artist Alan Jackson. The Bluegrass Album (Alan Jackson album):  It also includes covers of The Dillards' "There Is a Time", John Anderson's "Wild and Blue" and Bill Monroe's "Blue Moon of Kentucky".
i don't know