Related Clues:

• Lounge group, maybe
• Kingston, for one
• Bee Gees or The Stooges, e.g.
• 3-note chord
• Destiny's Child, among others
• Cream, of 1960's rock
• Threesome, like a chord
• Small group
• Three-note chord
• Cole's fiddlers, e.g.
• Three-piece ensemble
• The Dixie Chicks, e.g.
• The Kingston ---
• The Stooges, e.g.
• Rock's Cream, for instance