Who composed the song “Not Me” by Heather Headley?

The song “Not Me” by Heather Headley was composed by Elton John, Tim Rice.

Not Me

Elton John, Tim Rice

I once knew all the answers
I stood on certain ground
A picture of true happiness
Confidence so effortless
No brighter could be found

Mereb:
Oh No

Radames:
I never asked the questions
That trouble me today
I knew all there was to know
Love worn lightly
Put on show

My conquests on display (Mereb:I can't believe He's changing)

And who'd have thought that (Mereb:Oh, no)
Confidence could die?
Not me , Not me (Mereb:Not me, not me)
That all I took for granted was a lie

Not me, Not me
And who'd have guessed
I'd throw my world away

To be with someone I'm afraid will say (Mereb:This can never)
Not me,not me (Mereb:Be)

Mereb:
He's in love
But he's not the only one
Who'll be changed

Aida:
I shall not envy lovers
But long for what they share

Amneris:
An empty room is merciless
Don't be surprised if I confess
I need some comfort there

Aida and Amneris:
And who'd have thought
That love could be so good?
Not me, not me
And show me things I never understood
Not me, not me

Who'd have guessed he'd
Throw his world away
To be with someone til his dying day
Not me, not me

Radames, Amneris,Aida:
And who'd have thought that love
Could be so good
Not me, not me (Mereb:Not me, not me)
My/his secrets