How do you know when you find the right one?
How do you know you should get what the heart wants?
How do you know that the "the one" 
Isn't just someone?
How do you know that you'll need this forever?
How do you know that you won't find better?
How do you know that your one...
Is one in a million?
When you find the one 
That you can't live without 
Is the way you feel 
Stronger than doubt? 
Well how do you know 
When you find the right one...
Tell me how do you know?
How do you know 
That time won't prove you wrong ...
Tell me how do you know?
How do you know when it's time to hold on 
How do you know when it's time to let go 
How do you know what you have 
Is truly enough? 
And on those nights when you're up & you can't sleep 
He's on your mind all the time now you feel weak 
How do you know that means you're meant to be? 
When you find the one 
That you can't live without 
Is the way you feel 
Stronger than doubt? 
Well how do you know 
When you find the right one...
Tell me how do you know?
How do you know 
That time wont prove you wrong ...
Tell me how do you know?
How do you know, how do you know, how do you know, how 
do you know?
Tell me, how do you know?
How do you know, how do you know, how do you know, how 
do you know?
How do you know? How do you know?