One

One is the loneliest number that you'll ever do Two can be as bad as one It's the loneliest number since the number one No is the saddest experience you'll ever know Yes, it's the saddest experience you'll ever know Because one is the loneliest number that you'll ever do One is the loneliest number that you'll ever know It's just no good anymore since you went away Now, I spend my time just makin' rhymes of yesterday Because one is the loneliest number that you'll ever do One is the loneliest number that you'll ever know One is the loneliest number One is the loneliest number One is the loneliest number that you'll ever do One is the loneliest number, much, much worse than two One is a number divided by two One One is the loneliest number