Yes, the untapped power that lies within you. Now, child, it's time you awakened that power and realized your full potential.
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Album Cover of Hikari

Simple and Clean is the theme song of Kingdom Hearts, written and sung by Utada Hikaru, featured in Kingdom Hearts, Kingdom Hearts: Chain of Memories, as well as their remakes, and is also featured in Kingdom Hearts Birth by Sleep and Kingdom Hearts Re:coded.

Other Versions

Hikari is the original, Japanese version of "Simple and Clean"; it was originally released on Utada's Deep River album. It was used in the Japanese versions of Kingdom Hearts, Kingdom Hearts: Chain of Memories and Kingdom Hearts Birth by Sleep. The name Hikari (光) literally means Light in Japanese, a universal force in the Kingdom Hearts universe.

PLANiTb made remixes of both "Simple and Clean" and "Hikari". The PLANiTb version is faster, longer, and has more of a dance mix feel to it than Utada's original song. A shortened version of the remix is heard during the opening movie of Kingdom Hearts, Kingdom Hearts Final Mix, Kingdom Hearts Re:Chain of Memories, Kingdom Hearts Birth by Sleep, Kingdom Hearts Birth by Sleep Final Mix and Kingdom Hearts Re: coded. In addition, an orchestral arrangement of "Hikari" can be heard in Kingdom Hearts and Kingdom Hearts Final Mix in the opening menu cinematic which appears if the player lets the opening menu sit for about fifteen seconds. The orchestrated version is also featured at the end of each scenario of Kingdom Hearts Birth By Sleep.

Lyrics

English Lyrics (Simple and Clean)

When you walk away
You don't hear me say please
Oh baby, don't go
Simple and clean is the way that you're making me feel tonight
It's hard to let it go

You're giving me too many things
Lately you're all I need and more
You smiled at me and said,

Don't get me wrong I love you
But does that mean I have to meet your father?
When we are older you'll understand
What I meant when I said "No,
I don't think life is quite that simple"

When you walk away
You don't hear me say please
Oh baby, don't go
Simple and clean is the way that you're making me feel tonight
It's hard to let it go

The daily things
like this and that and what is what
that keep us all busy
Are confusing me
That's when you came to me and said,

Wish I could prove I love you
But does that mean I have to walk on water?
When we are older you'll understand
It's enough when I say so
And maybe some things are that simple

When you walk away
You don't hear me say please
Oh baby, don't go
Simple and clean is the way that you're making me feel tonight
It's hard to let it go

Hold me
Whatever lies beyond this morning
Is a little later on
Regardless of warnings the future doesn't scare me at all
Nothing's like before

When you walk away
You don't hear me say please
Oh baby, don't go
Simple and clean is the way that you're making me feel tonight
It's hard to let it go

Hold me
Whatever lies beyond this morning
Is a little later on
Regardless of warnings the future doesn't scare me at all
Nothing's like before

Hold me
Whatever lies beyond this morning
Is a little later on
Regardless of warnings the future doesn't scare me at all
Nothing's like before

Japanese Lyrics in Romaji (Hikari)

Donna toki datte
Tada hitori de unmei wasurete
Ikite kita no ni
Totsuzen no hikari no naka me ga sameru
Mayonaka ni

Shizuka ni
Deguchi ni tatte
Kurayami ni hikari o ute

Imadoki yakusoku nante
Fuan ni saseru dake kana
Negai o kuchi ni shitai dake sa
Kazoku ni mo shoukai suru yo
Kitto umaku iku yo

Donna toki datte
Zutto futari de
Donna toki datte
Soba ni iru kara kimi to iu hikari ga watashi o mitsukeru
Mayonaka ni

Urusai
Toori ni
Haitte
Unmei no
Kamen o tore

Sakiyomi no shisugi nante
Imi no nai koto wa yamete
Kyou wa oishii mono o tabeyou yo
Mirai wa zutto saki da yo
Boku ni mo wakaranaki

Kansei sasenaide
Motto yokushite
Wan shiin zutsu totte
Ikeba ii kara kimi to iu hikari ga watashi no shinario
Utsushidasu

Motto hanasou yo
Mokuzen no ashita no koto mo
Terebi keshite
Watashi no koto dake o
Miteite yo

Donna ni yokuttatte
Shinji kirenai ne
Sonna toki datte
Soba ni iru kara kimi to iu hikari ga watashi o mitsukeru
Mayonaka ni

Motto hanasou yo
Mokuzen no ashita no koto mo
Terebi keshite
Watashi no koto dake o
Miteite yo

Motto hanasou yo
Mokuzen no ashita no koto mo
Terebi keshite
Watashi no koto dake o Miteite yo
Mayonaka ni

English Lyrics (Simple and Clean PLANiTb Remix)

You're giving me too many things
Lately you're all I need and more
You smiled at me and said,

Don't get me wrong I love you
But does that mean I have to meet your father?
When we are older you'll understand
What I meant when I said "No,
I don't think life is quite that simple"

When you walk away
You don't hear me say please
Oh baby, don't go
Simple and clean is the way that you're making me feel tonight
It's hard to let it go

The daily things
that keep us all busy
Are confusing me
That's when you came to me and said,

Wish I could prove I love you
But does that mean I have to walk on water?
When we are older you'll understand
It's enough when I say so
And maybe some things are that simple

When you walk away
You don't hear me say please
Oh baby, don't go
Simple and clean is the way that you're making me feel tonight
It's hard to let it go

Hold me
Whatever lies beyond this morning
Is a little later on
Regardless of warnings the future doesn't scare me at all
Nothing's like before

When you walk away
You don't hear me say please
Oh baby, don't go
Simple and clean is the way that you're making me feel tonight
It's hard to let it go

Hold me
Whatever lies beyond this morning
Is a little later on
Regardless of warnings the future doesn't scare me at all
Nothing's like before

Hold me
Whatever lies beyond this morning
Is a little later on
Regardless of warnings the future doesn't scare me at all
Nothing's like before

Hold me
Whatever lies beyond this morning
Is a little later on
Regardless of warnings the future doesn't scare me at all
Nothing's like before

Japanese Lyrics in Romaji (Hikari) (PLANiTb Remix)

Shizuka ni
Deguchi ni tatte
Kurayami ni hikari o ute

Imadoki yakusoku nante
Fuan ni saseru dake kana
Negai o kuchi ni shitai dake sa
Kazoku ni mo shoukai suru yo
Kitto umaku iku yo

Donna toki datte
Zutto futari de
Donna toki datte
Soba ni iru kara kimi to iu hikari ga watashi o mitsukeru
Mayonaka ni

Donna toki datte
Zutto futari de
Donna toki datte
Soba ni iru kara kimi to iu hikari ga watashi o mitsukeru
Mayonaka ni

Urusai
Toori ni
Haitte
Unmei no
Kamen o tore

Sakiyomi no shisugi nante
Imi no nai koto wa yamete
Kyou wa oishii mono o tabeyou yo
Mirai wa zutto saki da yo
Boku ni mo wakaranaki

Kansei sasenaide
Motto yokushite
Wan shiin zutsu totte
Ikeba ii kara kimi to iu hikari ga watashi no shinario
Utsushidasu

Motto hanasou yo
Mokuzen no ashita no koto mo
Terebi keshite
Watashi no koto dake o
Miteite yo

Donna ni yokuttatte
Shinji kirenai ne
Sonna toki datte
Soba ni iru kara kimi to iu hikari ga watashi o mitsukeru
Mayonaka ni

Motto hanasou yo
Mokuzen no ashita no koto mo
Terebi keshite
Watashi no koto dake o
Miteite yo

Motto hanasou yo
Mokuzen no ashita no koto mo
Terebi keshite
Watashi no koto dake o Miteite yo

Japanese > English Translation (Light)

No matter what the time
I'm just alone
Destiny forgotten,
Even though I kept going.
Inside of the sudden light I awaken, In the middle of the night

Quietly, stand in the exit way, and in the pitch-black, take the light

And about the recent promises, is it just that I'm so anxious?
A wish that's wanting to be said, but shall be repressed
I'll introduce my family, you'll surely get along well

No matter what the time
We'll always be together
No matter what the time
Because you're by my side
The light known as "you" finds me, In the middle of the night

Enter a noisy street, and put on the mask of destiny.

I'll stop doing things that have no meaning, like thinking about the future.
Today I'll eat delicious things.
The future is always before us, even I don`t know it.

It's not necessary to go right to the end,
Just keep going.
It's okay if the scenes
Go on one by one.
The light known as "you" reflects my scenario

Let's talk more,
And about the tomorrow that's before your very eyes.
Turn off the television, and look only at me.

No matter how well we're doing,
I don't believe in us completely.
But at those sort of times,
Because you're by my side,
The light known as "you" finds me, In the middle of the night.

Let's talk more,
And about the tomorrow that's before your very eyes.
Turn off the television, and look only at me.

Japanese Lyrics in Japanese Kana and Kanji (光)

どんな時だって
ただ一人で
運命忘れて
生きてきたのに
突然の光の中、目が覚める 真夜中に 

静かに出口に立って 暗闇に光を撃て

今時約束なんて不安にさせるだけかな
願いを口にしたいだけさ
家族にも紹介するよ きっとうまくいくよ

どんな時だって
ずっと二人で
どんな時だって
側にいるから
君という光が私を見つける 真夜中に

うるさい通りに入って 運命の仮面をとれ

先読みのし過ぎなんて意味の無いことは止めて
今日はおいしい物を食べようよ
未来はずっと先だよ 僕にも分からない

完成させないで
もっと良くして
ワンシーンずつ撮って
いけばいいから
君という光が私のシナリオ 映し出す

もっと話そうよ
目前の明日のことも
テレビ消して 私のことだけを見ていてよ

どんなに良くったって
信じきれないね
そんな時だって
側にいるから
君という光が私を見つける 真夜中に

もっと話そうよ
目前の明日のことも
テレビ消して 私のことだけを見ていてよ

Audio Samples

Hikari (Orchestra Instrumental)
Simple and Clean
Simple and Clean (PLANiTb Mix)
Hikari
Hikari (PLANiTb Mix)

Videos

Simple and Clean - Kingdom Hearts Hikari - Kingdom Hearts
<youtube width="320" height="240">GVw4B7f0CTM</youtube> <youtube width="320" height="240">5bCCtv4GzG4</youtube>
Simple and Clean PLANiTb Remix Hikari PLANiTb Remix
<youtube width="320" height="240">GW4OTufDpjE</youtube> <youtube width="320" height="240">1xmEVhPhT9c</youtube>
Simple and Clean PLANiTb Remix - Kingdom Hearts Re:Chain of Memories Hikari PLANiTb Remix - Kingdom Hearts Re:Chain of Memories
<youtube width="320" height="240">gbhRTxlKOXk</youtube> <youtube width="320" height="240">0_oLN_SDIvk</youtube>
Simple and Clean PLANiTb Remix - Kingdom Hearts Birth by Sleep Hikari PLANiTb Remix - Kingdom Hearts Birth by Sleep
<youtube width="320" height="240">u5OoBRo9Ik8</youtube> <youtube width="320" height="240">to4t1SoAfMo</youtube>
Simple and Clean PLANiTb Remix - Kingdom Hearts Re:coded Hikari PLANiTb Remix - Kingdom Hearts Re:coded
<youtube width="320" height="240">up8TcrlDQHc</youtube> <youtube width="320" height="240">DPnDkRj-Ggs</youtube>