It's one of my favorite song by Tatu. I like it so much because sometime I want to say sorry but unfortunately it's so difficult. This song shows what I feel. Then check it out....
When I thought wasn't mine
In the light
was a one of a kind
A precious pearl
When I wanted to tell you
I made a mistake
I walked away
Gomenasai for everything
Gomenasai I know I let you down
Gomenasai till the end
I never needed a friend
Like I do now
Gomenasai
Gomenasai
Gomenasai my friend