Related Clues:

• Three-note chord
• Cole's fiddlers, e.g.
• Three-piece ensemble
• The Dixie Chicks, e.g.
• The Kingston ---
• The Stooges, e.g.
• Like Neptune's spear
• Rock's Cream, for instance
• Duet plus one
• Larry, Curly and Moe, for example
• Rock's Cream, e.g.
• Wynken, BIynken and Nod, e.g.
• The Andrews Sisters, e.g.
• Backup singers, often
• Blink-182, e.g.