The shock rock legend tackles the difficult subject ... power and yes, sadness. What sad song devastates you like no other? Let us know (if you feel comfortable doing so) in those comments below.

He wasn't afraid to shed a tear or two. Find out what cover song Presley considered the "saddest song" he ever heard, below.

The King of rock 'n' roll, Elvis Presley, once revealed the song he claimed was the "saddest" he'd ever heard while ...