Related Clues:

• Lounge group, maybe
• Kingston, for one
• Bee Gees or The Stooges, e.g.
• Wynken, Blynken and Nod, e.g.
• Destiny's Child, among others
• Cream, of 1960's rock
• Trio minus one
• Small group
• Cole's fiddlers, e.g.
• Three-piece ensemble
• Simon and Garfunkel, once
• The Dixie Chicks, e.g.
• The Kingston ---
• Batman and Robin are a dynamic one
• Deuce