Beatles, the

Do you want to know a secret?

You'll never know how much I really love you.
You'll never know how much I really care.

Listen, do you want to know a secret?
Do you promise not to tell?

Closer, let me whisper in your ear,
Say the words you long to hear, I'm in love with you.

I've known the secret for a week or two,
Nobody knows, just we two.