Not sure IF Sinatra had the original hit on this, but what about "I've Got You Under My Skin?" Then again, if we are talking "Signature Songs", I'd still go with My Way, NY NY or It Was A Very Good Year.
TIS
"Mankind must put an end to war before war puts an end to mankind. War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today." JFK
