U.S. & World History – One of the biggest songs by The “King of Rock and Roll” Elvis Presley, was inspired by his concerns over working men when he wanted to make an investment in the coal industry. But after he found out how many people had died deep underground due to unsafe working conditions, he wrote a song about the caves below the ground that appeared to be dangerous. The words and meaning of his hit song were later changed, but the original title was, “Suspicious Mines”.