Ella Fitzgerald was an American jazz singer famous for her unique vocal range and improvisational skills. She was known by various nicknames, such as "The First Lady of Song," "Lady Ella," and "The Queen of Jazz." Her career spanned for over six decades and she recorded more than 200 albums. Some of her most popular songs include "Summertime," "Mack the Knife," and "It Don't Mean a Thing (If It Ain't Got That Swing)." Fitzgerald was a cultural icon in the world of jazz and inspired many other musicians. Her legacy continues to influence and inspire people around the world.