Possible Clues:

• The 'you' in the classic song lyric 'I'm crossin' you in style some day'
• Henry Mancini/Johnny Mercer song from the film 'Breakfast at Tiffany's'
• It's 'wider than a mile,' in an old song
• Henry Mancini classic
• Oscar-winning Henry Mancini song
• Person proposing to install creation of iron that's more than a mile wide
• Song sung by Sinatra