Related Clues:

• Tuneful twosomes
• Acts of duplicity?
• Lucy and Ethel and Thelma and Louise
• Ice dancing teams, e.g
• OutKast and others
• Entertaining couples?
• The Blues Brothers and others
• Two and two?
• Pairs of singers
• Singing pairs
• Some metal bands
• Minimal groups
• Simon & Garfunkel et al
• Some acoustic acts
• Allied pairs