Who composed the song “I've Got the World on a String” by Ruth Brown?

The song “I've Got the World on a String” by Ruth Brown was composed by Harold Arlen, Ted Koehler.

I've Got the World on a String

Harold Arlen, Ted Koehler

(Hey Michael, come on and swing)
(Looks like you got the world on a string)

I've got the world on a string
I'm sitting on a rainbow
Got that string around my finger
What a world, what a life; I'm in love

I've got a song that I sing
And I can make the rain go
Any time I move my finger
Lucky me, can't you see? I'm in love

Life's a wonderful thing
As long as I've got that string
I'd be a silly so-and-so
If I should ever let you go

I've got the world on a string
I'm sitting on the rainbow
I've got that string around my finger
Oh, what a world, what a life; I'm in love

Life's a wonderful thing
As long as I hold the string
I'd be a crazy so-and-so
If I should ever let her go

I've got the world on a string
I'm sitting on a rainbow
I got that string around my finger

Oh, what a world, what a life
Oh, what a world, what a life
What a world, what a life 'cause I'm in love
(He's in love, he's in love)

I'm in love
(Got the world on a string)
And what a wonderful thing
(All right)
When you get the world (Uh huh) on a string