好像是Lynyrd Skynyrd的"Free Bird".
不太敢肯定.

歌詞如下, 可確認看看:
Freebird
Written by Allen Collins - Ronnie Van Zant

If I leave here tomorrow
Would you still remember me?
For I must be travelling on, now,
'Cause there's too many places I've got to see.
But, if I stayed here with you, girl,
Things just couldn't be the same.
'Cause I'm as free as a bird now,
And this bird you can not change.
Lord knows, I can't change.

Bye, bye, its been a sweet love.
Though this feeling I can't change.
But please don't take it badly,
'Cause Lord knows I'm to blame.
But, if I stayed here with you girl,
Things just couldn't be the same.
Cause I'm as free as a bird now,
And this bird you'll never change.
And this bird you can not change.
Lord knows, I can't change.
Lord help me, I can't change.