Which Grammy Award-winning jazz singer, known for her three-octave range and scat singing, was discovered at the Apollo Theater's Amateur Night at age 17?

• A Billie Holiday
• B Ella Fitzgerald ✓
• C Sarah Vaughan
• D Dinah Washington

Ella Fitzgerald, the 'First Lady of Song', recorded over 200 albums, won 14 Grammys, and her 'Songbook' series interpreting the Great American Songbook remains definitive.