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The Nolans were a popular band in the UK in the seventies and found fame in Japan around the same time. Their songs still appear in commercials to this day. When they toured Japan, they would sing their 1980 hit "I'm in the Mood for Dancing" in Japanese and it later became a novelty they would perform back in the UK (they did so as recently as last year). Here's a 1992 TV clip showing their skills.
See also The Carpenters and The Three Degrees.