I have an extremely long list, it's kind of a hobby of mine. But the ones that stand out most are:

The Beatles - In My Life (I think enough people know the words)

The Cure - Lovesong:
Whenever I'm alone with you
You make me feel like I am home again
Whenever I'm alone with you
You make me feel like I am whole again
Whenever I'm alone with you
You make me feel like I am young again
Whenever I'm alone with you
You make me feel like I am fun again

Whenever I'm alone with you
You make me feel like I am free again
Whenever I'm alone with you
You make me feel like I am clean again

However far away I will always love you
However long I stay I will always love you
Whatever words I say I will always love you

Sigur Ros - Inní Mér Syngur Vitleysingur

Á silfur-á
Lýsir allan heiminn og augun blá
Skera stjörnuhiminn
Ég óska mér og loka nú augunum
Já gerðu það, nú rætist saga
Ó nei

Á stjörnuhraða
Inni í hjarta springur, flugvélarbrak
Oní jörðu syngur
Ég óska mér og loka nú augunum
Já gerðu það, lágfara dans
Allt gleymist í smásmá stund og rætist samt
Opna augun
Ó nei

Minn besti vinur hverju sem dynur
Ég kyngi tári og anda hári
Illum látum, í faðmi grátum
Þegar að við hittumst
Þegar að við kyssumst
Varirnar brenndu, höldumst í hendur
Ég sé þig vakinn
Ég sé þig nakinn
Inní mér syngur vitleysingur

(translation)
On a silver river
You illuminate the whole world and blue eyes
Cut the starry sky
I make a wish and close my eyes
Yes do that, now begins the story
Oh no

At lightspeed
Inside a heart explodes, an airplane crash
Down on the earth sings
I make a wish and close my eyes
Yes do that, a silly dance
All is forgotten in very little time and yet begins
Open eyes
Oh no

My best friend no matter whatever happens
I swallow tears and breathe hair
A bad break, we cry in each other arms
When we meet
When we kiss
The lips burning, we hold hands
I see you wake
I see you naked
Inside me a lunatic sings


and finally: http://www.youtube.com/watch?v=Zr_MJAOyOeU