Can anyone help

I wonder if someone can tell me who sang this song. I believe the title is 'I will':-

Who knows how long I've loved you?
You know I love you still
Will I wait a lonely lifetime?
If you want me to, I will

For (and) if I ever saw you
I didn't catch your name
But it never really mattered
I will always feel the same

Love you forever and forever
Love you with all my heart
Love you whenever we're together
Love you when we're apart

And when at last I find you
Your song will fill the air
Sing it loud so I can hear you
Make it easy to be near you
For (and) the things you do endear you to me
You know I will

I will

Love you forever and forever
Love you with all my heart
Love you whenever we're together
Love you when we're apart

And when at last I find you
Your song will fill the air
Sing it loud so I can hear you
Make it easy to be near you
For (and) the things you do endear you to me
Oh, you know I will

The Beatles?
http://www.youtube.com/watch?v=go2wjF7f-zw