All of Me。

Cause all of me loves all of you
Love your curves and all your edges
All your perfect imperfections
Give your all to me, I'll give my all to you
You're my end and my beginning
Even when I lose, I'm winning


你全力地愛著我，我也會全力地愛著你；
你給我所有東西，我也會給你所有東西。

很公平。

另外，那句「My head's underwater」令我想起了4個字：腦袋進水。