The New Leader Of The Opposition Party/
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No best answer has yet been selected by Kate^^. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.My old Pop (very old!) says that it is a song he remembers being sung by Arthur Askey in the late fifties or early sixties with a female singer possibly called Yana and he thinks it went 'yada, yada, yada, yada, ching, ching, boom' at a faster pace than the commercial.
However an intensive websearch is, so far, unrevealing.