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Engelbert Humperdinck sold over a million singles of "Release Me" and "The Last Waltz". These songs were both released in 1967 and were both number one hits in the UK. "Release Me" was also a number one hit in the US, while "The Last Waltz" reached number two. Humperdinck is a British singer who has had a successful career in music, with over 150 million records sold worldwide.