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Dexys Midnight Runners - the name consistently spelled without an apostrophe - were a British post-punk and northern soul band who achieved their major success in the early to mid 1980s. The word "Dexys" in this case, comes from a colloquialism of "dextroamphetamine" or "purple hearts," a type of amphetamine diet pill that was a popular "upper" drug with England's Northern Soul scene in the 1960s.