I got a question for you: Danny Williams (7 January 1942 -- 6 December 2005) was a British, South African-born pop singer. who earned the nickname, "Britain's Johnny Mathis", for his smooth and stylish way with a ballad. He is best known for singing his UK number 1 version of "Moon River" in 1961 and his US top ten hit, "White on White".\n\nBased on this passage, who had a number one hit with moon river?
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The relevant sentence in the passage is: He is best known for singing his UK number 1 version of "Moon River" in 1961 and his US top ten hit, "White on White".
Therefore, the answer is Danny Williams.
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