《Battlefield》由Timbaland亲自操刀製作，由Josiah “JoJo”Morton、JaneZhang张靓颖填词，King Logan、Paul “P.J”Morton作曲。无论是全英文的演绎还是国际化班底的精心打磨，都代表着国内音乐人走向国际的尝试。将中国歌手之所长，与国际一流音乐人的表现手法相结合，碰撞出新的火花。

张靓颖与郎朗合作演绎《Battlefield》

Maybe I'm not enough

I can't give you what you need anymore

Maybe it's just my luck

That I got less than what I bargained for

So if what you feel is no longer real

I can just walk away

But don't leave me hangin'

If you're unsure no more back and forth

Can you help me

Tell me what I'm fighting for

Please just tell me

You can be honest if I'm fighting on my own

I can't live if I'm on this battlefield alone

Maybe I'm not as tough as I used to be

It's getting to be too much

I would rather you just set me free

So if what you feel is no longer real

I can just walk away

But don't leave me hangin'

If you're unsure no more back and forth

Can you help me

Tell me what I'm fighting for

Please just tell me

You can be honest if I'm fighting on my own

I can't live if I'm on this battlefield alone

Like battlefield

On this battlefield alone

Battlefield alone

《Battlefield》作为电影《长城》的推广曲，诠释了影片中无影禁军的精神核心。整首歌曲唯美，而不俗套，“靓”式情歌解锁新唱法，恰如其分的诠释，令人动容，画面感十足，仿佛在向人们娓娓道来一个古老而伟大的故事。没有繁複的歌曲结构，《Battlefield》凭藉简单的钢琴拉开帷幕，人声撑满全场，直至尾声强烈的鼓点与弦乐加入，与人声呼应，又以纯人声作为结尾，仿佛“战场”上硝烟后的寂寥，唯美而悽然。歌曲整体的恢弘大气与张靓颖对整首歌曲情绪的把控相得益彰。张靓颖的动情开嗓，“Tell me what I'm fighting for ”，仿佛与将士们的隔空对话。

《Battlefield》MV以电影《长城》中无影禁军的各种兵器道具和五军的元素揭开序幕，张靓颖动情开嗓，柔情婉转的歌声娓娓道来，瞬间把人们的思绪带回了古战场。“Can you help me，tell me what I‘m fighting for（你可以帮我吗？告诉我到底为什幺而坚持）”，在荒凉的古战场之上，身后是将士们在饕餮来袭后拚死抵抗留下的满目疮痍。张靓颖如泣如诉的演唱仿佛与五军将士们在隔空对话，将彼时他们坚守长城场景一幕幕呈现在眼前，体现了无影禁军的“魂”之所在：无私、无畏、无影、无名。为了人类的安危，随时做好牺牲的準备。而整首主题曲的高潮处，她动情高亢的歌声一遍遍在强调着的，也正是长城所承载的中国精神——无论面对的是何种险境，都不轻言放弃。