Here are 23 of the greatest hits from the goddesses of 20th century song. From Peggy Lee & Edith Piaf to Ella Fitzgerald, Marilyn Monroe & Rosemary Clooney. These were the larger-than-life female vocalists who defined the popular music of their day with their talent, style & unforgettable personalities. Billie Holliday's haunting blues, Doris Day's melodic pop ballads & Nina Simone's jazzy soul songs all gave women a distinctive voice to match the mood of the times.