《Unbelievable》的歌詞如下：
女：
I’m done, I’m done,
Telling my story to the world,
Done waiting for your love to come around,
Now I’m gone, gone,
Wishing I could turn back time,
But I lost my faith, my faith in love.
男：
I apologize,
For all the times I fell short,
And didn’t see things through,
But now it’s too late,
You should have believed me then.
女：
Unbelievable, how he could ever leave me,
Unbelievable, how I had to learn from my mistakes.
But now I’m done waiting,
Done being the other woman,
He can leave me now, he can go.
男：
Unbelievable, that you could ever doubt me,
Unbelievable, when you know I always had your best interest.
But now you’re gone,
I guess I was just too blind to see.
Now I gotta let you go.
女：
It’s time to let go,
And start over again,
Won’t be the same,
Gonna make it last,
Cause this time I know,
I know what love really is.
男：
I apologize, for all the times I fell short.
But now it’s too late, you should have believed me then.
Now I gotta let you go.
女：
我已經受夠了，向全世界述說我的故事，等待你的愛降臨，現在我受夠了，受夠了。希望我能把時間倒轉，但我失去了對愛的信念。
男：
我道歉， 那么多次我跌倒讓你失望， 並沒有察覺事情的原委，但現在為時已晚， 你當時應該相信我。
女： 難以置信他如何離開我， 難以置信我必須從我的錯誤中學習。但現在我受夠了等待，再也不要做另一個女人，現在你可以離開，你可以走。
男：難以置信你會懷疑我，難以置信明明知道你有最好的利益但我還如此盲目。現在你走了，我想我太盲目了。現在我必須讓你走。
他們兩人的歌詞各自對應一段，男女對唱，歌詞都在上面了。