Why??

I trust in IMDB 100%, so I am convinced that Leslie Ash is British. Born in London it says. So why has she been appearing on Japanese TV for the last few months promoting Nescafe instant in a broad American accent. She only says about three words and 99% of the Japanese population have no chance of discerning the difference between a British and an American accent, so why has someone decided she should talk like this? It is a total mystery to me. Is it a lifestyle choice she has taken on? Does she always talk this way now?

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