что значит выражение "happy go lucky me"

I'm so happy!
Aha! happy go lucky me!
I just go my way,
Living everyday!

I don't worry!
Worrying don't agree,
Things that bother you,
Never bother me!

Things that bother you,
Never bother me
I feel happy and fine!
Aha!
Living in the sunlight,
Loving in the moonlight
Having a wonderful time!

Haven't got a lot,
I don't need a lot
Coffee's only a dime
Living in the sunlight,
Loving in the moonlight,
Having a wonderful time!

Just take it from me,
I'm just as free as any daughter.
I do what i like,
Just what i like,
And how i love it!

I'm right here to stay
When i'm old and gray,
I'll be right in my prime!
Living in the sunlight,
Loving in the moonlight,
Having a wonderful time!

Just take it from me,
I'm just as free as any daughter.
I do what i like,
Just what i like,
And how i love it!

I'm right here to stay,
When i'm old and gray,
I'll be right in my prime,
Living in the sunlight,
Loving in the moonlight,
Having a wonderful time!

Даже сыль могу дать на песню, если интересно.
http://www.youtube.com/watch?v=GCtQmwJ1WAY