Ella Fitzgerald was an American jazz singer and songwriter who was renowned for her vocal range and improvisational skills. She was often referred to as the 'First Lady of Song' and 'Queen of Jazz'. Fitzgerald was a major influence on jazz and popular music in the 20th century, and her career spanned over six decades. She won 13 Grammy Awards and sold over 40 million albums. Fitzgerald is remembered as one of the greatest jazz singers of all time.