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背景：Mad World 是英国乐队Tears for Tears在82年创作的早期作品之一，由Roland Orzabal创作和乐队贝斯手Curt Smith演唱。Mad World乐队发行的第三首单曲也是第一首榜单热曲。20年后，因为电影《死亡幻觉（Donnie Darko）》在片尾使用了 Michael Andrews 和 Gary Jules创作的叙事版本Mad World,使得此曲再度走红。这一版本在2003年12月达到了英国热销单曲的首位，同时，这首单曲也被用于视频游戏 Gears of War 的宣传片中。
歌词显得比较散漫，它融合几幅不同的画面，形成了一个并没有什么具体事物的世界。
—Roland Orzabal （此曲作者）
歌词像是在形容一个偷窥者的世界。像是表述一个青年眼中的疯狂的世界。
—Curt Smith （此曲演唱者）
英文版歌词：
Mad World
All around me are familiar faces
Worn out places, worn out faces
Bright and early for their daily races
Going nowehere, going nowhere
And their rears are filling up their glasses
No expression, no expression
Hide my head I want to drown my sorrow
No tomorrow, no tomorrow
And I find it kind of funny
I find it kind of sad
The dream in which I'm dying
Are the best I've ever had
I find it hard to tell you
'Cos I find it hard to take
When people run in circles
It's a very very
Mad World
Mad World
Children waiting for the day they feel good
Happy Birthday, Happy Birthday
Made to feel the way that every child should
Sit and listen, sit and listen
Went to school and I was very nervous
No one knew me, no one knew me
Hello tacher tell me what's my lesson
Look right through me,
look right through me
look right through me
And I find it kind of funny
I find it kind of sad
The dream in which I'm dying
Are the best I've ever had
I find it hard to tell you
'Cos I find it hard to take
When people run in circles
It's a very very
Mad World
Mad World
Mad World
Mad World
