21 May 2009 《The 20hr Gong Yoo Waiting For》 He singing 《내가너의곁에잠시살았다는걸》 in his KFN radio program. 
MP3 Download : [bad word] /www [bad word] ?ceclwuntdyx 
Credit f2217560 @ Baidu GYEH -------------------------------------- 
English translation lyrics

"That I was once by your side" (Singer: Toy)

Thought I erased your memories [bad word] nights with friends
Thoughts of you give me hard times
I lived like that, I was always alone

I once thought you were the salvation
Until we became apart
Could you remember this
That I was once by your side
In case I meet you on the street
I view my shabby self on the mirror and dress up

Are you healthy? I'm worried
I'm sure you're happy but I'll pray for you
Remember, even if you're with someone else
That I was once by your side

I could smile, when I was looking at you
You were a little sanctuary for me
Until we became apart