Related Clues:

• Three performers from choir turned up
• Performing threesome
• Tango by city jazz band
• Lounge combo, often
• The band Ben Folds Five, oddly
• 61 Across + 1
• The witches in “Macbeth,” e.g
• The Chipmunks, e.g
• The 16-Across, e.g
• Folk combo, perhaps
• The Marx Brothers, after 1933
• Simple band or group
• The Jonas Brothers or Dixie Chicks
• Me, you and the harpist
• The Sanderson sisters of 'Hocus Pocus,' e.g