Ella Fitzgerald's voice is a phenomenon and unrivalled to this day. She had the perfect pitch and perfect intonation. Ella's voice spanned three octaves, her phrasing seemed effortless. There is almost no style of music, in which she did not excel, and her numerous - now legendary - recordings of the 'Great American Songbook' with pieces of US composers such as George and Ira Gershwin, Harald Arlen, Cole Porter or Duke Ellington, remained a benchmark for the "right" interpretation of those songs for generations of singers. In the film the focus will be on the voice of Ella Fitzgerald. We want to unravel the secret of her voice through many different people (musicians, singers, critics etc.), who will tell about what impact her voice had on them and still has. We want to learn more about Ella´s life to find out what made her sing like she did and only she could.
| Actor | Role |
|---|---|
 Ella FitzgeraldSelf (archive footage) | Self (archive footage) |
| JJim BlackmanSelf - Ella Fitzgerald's friend and road manager | Self - Ella Fitzgerald's friend and road manager |
| TTheo BleckmannSelf | Self |
| RRegina CarterSelf | Self |
| DDee Dee BridgewaterSelf | Self |
| TTerri Lyne CarringtonSelf | Self |
| WWill FriedwaldSelf - music critic | Self - music critic |
| TTad HershornSelf - archivist, Institute of Jazz Studies, Rutgers University | Self - archivist, Institute of Jazz Studies, Rutgers University |
| SSheila JordanSelf | Self |
 Dianne ReevesSelf | Self |
| JJudith TickSelf - professor of music history, Northeastern University | Self - professor of music history, Northeastern University |