Related Clues:

• Snap, Crackle and Pop, e.g
• Threesome ... or a hint to this puzzle's theme
• More than a couple
• Athos, Porthos and Aramis, e.g
• Destiny's Child was one
• The Stooges, e.g
• Wedding band, perhaps
• The Supremes or Cream
• Common folk group
• More than a couple?
• Duo with a third wheel
• "Jeopardy!" contestants, e.g
• Anagram of "riot"
• Small musical band
• The Three Stooges, e.g