That's When I Knew

by Alicia Keys
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Lyrics

Right there,

in the (D)mid dle of a con ver sa tion,

was n’t (Csus2)an y thing spe cial you said.

It was just

there.

Right then,

I did n’t (D)have time to e ven o ver think it.

I looked at you and all of a sud den

I was all

in.

It’s like my (Am)knees are all weak and them but (D7)ter flies, they were danc in’, tak in’ all of my air.

From that mo (C)ment on, it was ver (Cm)y clear.

That’s when I knew I fell in love.

That’s when I knew you were the one.

That’s when I knew you stole my (Dm7)heart a way from me.

That’s when I knew that I was sunk.

That was the mo ment that I knew I was in love.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That day,

I did n’t (D)know where we were go in’, where the night would end.

I did n’t (Csus2)know if there was some thin’ brew in’; and if it was, I did n’t know how much I cared.

That touch,

when you (D)bare ly held my hand, I was o ver come with feel ings (Csus2)I don’t un der stand.

Not in a mil lion years, I did n’t think that we’d be here.

It’s like my (Am)knees are all weak and them but (D7)ter flies got me danc in’, tak in’ all of my air.

From that mo (C)ment on, it was ver (Cm)y, ver y, ver y, ver y clear,

oh.

That’s when I knew I fell in love.

That’s when I knew you were the one.

That’s when I knew you stole my (Dm7)heart a way from me.

That’s when I knew that I was sunk.

That was the mo ment that I knew I was in love.

That’s when I knew.

That’s when I knew.

That’s when I knew, don’t you know it.

Hey,

that’s when I knew.

That’s when I knew.

That’s when I knew, ba by.

You know when you know.

You know what you feel and there’s no de ny in’ that love is for real.

There’s noth in’ to do,

just let it in.

Got to sur ren der.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew.

That’s when I knew we fell in (G)love.

That's When I Knew — Falling Notes Piano Tutorial

Watch "That's When I Knew" by Alicia Keys in falling notes style — like Synthesia. Color-coded notes fall onto the keyboard in real time. Practice left hand, right hand, or both. Key of G, 120 BPM.

Tip: Start at 50% speed to get comfortable with the fingering, then work your way up to full tempo.

Try other practice modes:

BeginnerLead SheetBar SheetSimple Sheet

About “That's When I Knew”

What key is "That's When I Knew" by Alicia Keys played in?
That's When I Knew is arranged in the key of G on Super Simple Piano. You can transpose to any other key live in the player.
What's the tempo (BPM) of "That's When I Knew"?
The arrangement plays at 120 BPM. Use the speed control (10-200%) to practice slower or play faster.
Is "That's When I Knew" easy to play on piano?
Yes — this is one of our beginner-friendly arrangements with simplified chords and color-coded notes.
Can I download sheet music for "That's When I Knew"?
Yes — registered users can download PDF sheet music, plus MIDI and MusicXML files for use in other notation software.
Who composed "That's When I Knew"?
"That's When I Knew" was originally performed by Alicia Keys. The Super Simple Piano arrangement is simplified for beginner-to-intermediate players.
What chords are used in "That's When I Knew"?
This arrangement uses 17 chords: A7, Am, Am7, Bm7, C, C7, Cm, Cmaj7, +9 more.
What other songs by Alicia Keys can I play here?
Try "AS I AM", "DE NOVO ADAGIO (INTRO)", "TEARS ALWAYS WIN". All are in our player with color-coded notes; pick the one matching your level.

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