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 
'Cause one is the loneliest number that you'll ever do 
One is the loneliest number, whoa, worse than two 

It's just no good anymore since you went away 
Now I spend my time just making rhymes of yesterday 
One is the loneliest number 
One is the loneliest number 
One is the loneliest number that you'll ever do 
One is the loneliest, one is the loneliest 
One is the loneliest number that you'll ever do 

It's just no good anymore since you went away 

Number 
One is the loneliest 
Number 
One is the loneliest 
Number 
One is the loneliest number that you'll ever do 
(Repeat in various forms)