Question: Which song written by the American musical duo, The Weather Girls, sold over 6 million copies worldwide?
Sentence (from "It's Raining Men"): The song had been offered to Diana Ross, Donna Summer, Cher, and Barbra Streisand before being accepted by Martha Wash and Izora Armstead of The Weather Girls, with their version becoming an international hit, selling over 6 million copies worldwide.
Relevant evidence: No