<lengthy instrumental intro>
Be careful, it's my heart
It's not my watch you're holding, it's my heart
It's not the note that i sent you that you quickly burned
It's not the book i lent you that you'll never return
Remember, it's my heart
The heart with which so willingly i part
It's yours to take, to keep or break
But please, before you start
Be careful, it's my heart
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Irving Berlin » Be Careful, It's My Heart