Here is the actual song, performed live: http://youtu.be/qY3_tBJqMKU
And here are the two best pages of lyrics that I could find. One has the English translation and the romanized lyrics, the other (which is a horribly ugly page) has the romanization and the lyrics in hangul.
http://bamsaranghaee.blogspot.com/2012/04/big-bang-wings-daesung-solo.html (a song will start playing in an app)
The line I want is what is translated as 'I'll be your wings', that's in the second to last batch of lyrics (I'm afraid I have no idea how to talk about song structure).
(I have become a horrible Bigbang fan. I already wanted the 'love LOVE love CHANGE love HATE love DUST' line on my opposite arm, but when I actually really figured out what Wings was about I had a moment of I MUST HAVE. Oh, identifying with songs.)
EDIT: Because I forget to include the links I meant to include.