From an article on the CBS News website:
"I remember when he introduced me to Elvis Presley, And Elvis says, 'You know, they call me the King of Rock and Roll. But your Father is the King of Cool,'" Martin's daughter Deana Martin said. "And I went 'Oh my gosh! Elvis Presley said that Dad's the King of Cool!' But we all knew that he was the King of Cool.That is so true. We all know that Dino oozed coolness. He's the coolest cat that ever swaggered on this planet. Even Elvis realized that and was inspired by Dino.
Click on the Elvis Information Network for a great article on how Elvis was influenced by Dino. It's really fascinating. I'm sure you'll enjoy it.
Here's a clip of Elvis singing Welcome To My World. He does do a really cool job with this song. I hope you enjoy it. Cheers!