Possible Clues:

• Ol' (Sinatra nickname)
• Frank Sinatra trait
• Physical feature for Daryl Hall and Frank Sinatra
• "Ol'" Sinatra nickname
• So blue that they may be seen to see
• You'll never see red with them
• Seeing they were windy, by the sound of them
• Did 'e sound as if 'e was blowing for to see? Yes