Just months after Tom Jones broke onto the charts with "It's Not Unusual," the producers of Sean Connery's fourth Bond film signed him up. Jones wasn't their first choice: Shirley Bassey, Dionne Warwick and Johnny Cash also submitted songs for Thunderball, but at the last possible minute they opted for the Welsh singer. It became Jones' third Top 40 hit in America, and has been part of his Las Vegas show ever since.