“Don’t Be Cruel” with “Hound Dog” on the flip side is Elvis Presley’s all-time best-selling 2-sided single and his personal favorite. The king recorded 28 takes before settling on the version heard on record. “Don’t Be Cruel” was originally offered to a young Frankie Valli but song-writer Otis Blackwell asked him to let Elvis record what would become a Rock & Roll classic. Elvis held the #1 spot on the Billboard charts for 11 weeks in 1956. Released by RCA, the 45 is worth up to $50.00. The black and white picture sleeve can sell for $100.00 today.