This Happy Madness的詞曲作者未披露，但有提供歌詞。以下是This Happy Madness的詞曲：
女聲：
This happy madness is all I know
這份幸福瘋狂，是我所知
And I don't want it to stop
我不希望它停止
'Cause I am where I want to be
因為我停留在我所想要的這裡
男聲：
Everyday, we fall a little deeper
每一天，我們陷得再深一點
It's the way you're making me feel
這就是你讓我感到的方式
It's not right, but it's beautiful
不對，但是這很美妙
I can't believe how I feel every time
我無法相信我每次的感受
I can't stop the madness that I feel inside
我無法停止內心的瘋狂
I can't help myself when I look into your eyes
當我望向你的眼睛我無法控制自己
So, don't fight it, baby let yourself go crazy
所以，不要抗爭，寶貝讓自己變得瘋狂吧
男女合唱：
It's the happy madness, oh my baby, we don't need no wings
這份幸福瘋狂，喔我的寶貝，我們不需要翅膀
We just fall, and it feels so right
我們墜入愛河，感覺如此對
To stay, with every dream that comes true tonight
留在我們身邊，與每個今晚實現的夢一樣美妙
女聲：
I can't stop the madness that I feel inside
我無法停止內心的瘋狂
I can't help myself when I look into your eyes
當我望向你的眼睛我無法控制自己
So, don't fight it, baby let yourself go crazy
所以，不要抗爭，寶貝讓自己變得瘋狂吧
Let yourself go crazy tonight, oh oh oh oh oh oh oh oh oh
今晚讓自己變得瘋狂吧，噢噢噢噢噢噢噢噢噢
男聲：
Baby, we don't need no wings to fly high in the sky
寶貝，我們不需要翅膀在天空中高高飛翔
Let ourselves go crazy tonight, yeah yeah yeah yeah yeah yeah yeah yeah yeah
今晚讓我們變得瘋狂吧，耶耶耶耶耶耶耶耶耶耶
Let ourselves go crazy tonight, yeah yeah yeah yeah yeah yeah yeah yeah yeah (x2)
今晚讓我們變得瘋狂吧，耶耶耶耶耶耶耶耶耶耶，重複兩次
男女合唱：
So let ourselves go crazy tonight, yeah yeah yeah yeah (x3)
所以今晚讓我們變得瘋狂吧，耶耶耶耶（重複三次）