Related Clues:

• A two-piece?
• Love song, often
• ''Up Where We Belong,'' for one
• Part of a countdown
• Vocal piece
• Top 10 item
• Troubadour's offering
• Harmonized number
• ''Tea for Two,'' e.g.
• "Say, Say, Say," say
• 'American Idol' selection
• Tune for two
• Karaoke offering
• Operatic love scene, usually
• Air from a pair