Possible Clues:

• "If You Leave" '80s new wave group
• '80s "The Pacific Age" synth-band, for short
• '80s "If You Leave" synth band (abbr.)
• "If You Leave" band, for short
• "If You Leave" band, briefly
• '80s "If you leave, don't leave now" band (abbr.)
• They went Sailing On The Seven Seas in nineteen ninety one