Elvis Presley served in the United States Army between March 1958 and March 1960. At the time of his draft he was the most well-known name in the world of entertainment.\n\nWhat popular entertainer joined the us army in 1958? Let's think fast. Stream of consciousness:
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The relevant sentence in the passage is: Elvis Presley served in the United States Army between March 1958 and March 1960. So the final answer is Elvis Presley.
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