Heres an American who captured the hearts of Australia back in the 1950s---He started with a group of hillbilly singers, himself sang the vocals the for years ran radio quiz shows
He and wife Dolly really made a name for themselves not only on radio but sport fishing as well, he often teed up with Lee Marvin marlin fishing off Cairns Queensland
Robert "Bob" Dies OBE (22 May 1909 – 9 January 1984), who took the stage name of Bob Dyer, was an American-born vaudeville entertainer, radio personality, and radio and television quiz show host who made his name in Australia. Dyer is best known for the long-running radio and then television quiz show, Pick a Box. At the height of his radio career, Dyer and his friend and rival, Jack Davey, were regarded as Australia's top quiz comperes.[1]

Bob and his wife, Dolly, were probably, after Sir Robert and Dame Pattie Menzies, the most recognised double act in Australia in the 1960s.[2] Bob and Dolly's main interest besides performing was big-game fishing and, between them, they broke some 200 world and Australian fishing records.