There is a neighboring thread
Cover songs versus the original track, which ones are better?
https://www.physicsforums.com/threads/cover-songs-versus-the-original-track-which-ones-are-better.1050205/
which is an endless subject and as colorful are the posts there. I came across a Buddy Holly cover by Eva Cassidy only to find out that the Buddy Holly song was already a Paul Anka cover. Anyway, both artists who had covered the song have passed far too early in their lives. That gave me the...