What key is "They Don't Know About Us" in?

"They Don't Know About Us" by One Direction is in the key of C with a tempo of 74 BPM. Difficulty: advanced.

Is "They Don't Know About Us" easy to play on piano?

This arrangement is rated advanced. It requires comfort with chord shapes and basic hand independence. Expect 1-2 weeks of regular practice for a confident performance.

Can I play "They Don't Know About Us" without reading sheet music?

Yes. Our player offers a falling-notes mode (Synthesia-style) and a beginner mode with color-coded keys — both let you play along without reading traditional notation.

What chords are used in "They Don't Know About Us"?

This arrangement of "They Don't Know About Us" uses 5 chords: Am, C, Em7, F, G.

How long does it take to learn "They Don't Know About Us" on piano?

2–4 weeks of consistent practice (20–30 min/day) for an intermediate player. Drill the tricky passages in isolation first.

What other songs by One Direction can I play here?

Try "DRAG ME DOWN", "OVER AGAIN", "HAPPILY". All are available in our player with color-coded notes; pick the one matching your level.

Lyrics

Peo ple say (C)we should n’t be to geth er, too young (Am)to know a bout for ev er.

But I say, (C)they don’t know what they’re (C)talk talk talk ing a bout.

(Talk talk talk ing a bout.) ’Cause this love is on ly get ting strong er; so I don’t wan na (Am)wait an y long er.

I just wan (C)na tell the world that you’re (G)mine, girl.

Oh, they don’t know a bout the (F)things we (C)do.

They don’t know a bout the (G)“I love (Am)you’s.” But I’ll bet you, if they (F)on ly (C)knew,

they would (G)just be jeal ous of us.

They don’t (C)know a bout the (F)up all (C)nights.

They don’t know I’ve wait ed (G)all my (Am)life just to find a love that (F)feels this (C)right.

Ba by, (G)they don’t know a bout, they don’t (C)know a bout (F)us.

One touch, (C)and I was a be liev er.

Ev ’ry kiss, (Am)it gets a lit tle sweet er.

It’s get ting bet ter, (C)keeps get ting bet ter all the (G)time, girl.

They don’t know a bout the (G)they don’t know a bout, they don’t (C)know a bout (F)us.

They don’t know (C)how spe cial you are.

They don’t know (Am)what you’ve done to my heart.

They can say (C)an y thing they want, ’cause (G)they don’t know a bout us.

They don’t know (C)what we do best; it’s be (G)tween me and you, (Am)our lit tle se cret.

But I wan na tell ’em, (C)I wan na tell the world that you’re (G)mine,

girl.

They don’t know a bout the (F)things we (C)do.

They don’t know a bout the (G)“I love (Am)you’s.” But I’ll bet you, if they (F)on ly (C)knew,

they would (G)just be jeal ous of us.

They don’t (C)know a bout the (F)up all (C)nights.

They don’t know I’ve wait ed (G)all my (Am)life just to find a love that (F)feels this (C)right.

Ba by, (C)they don’t know a bout us.

They don’t know a bout the (F)things we (C)do.

They don’t know a bout the (G)“I love (Am)you’s.” But I’ll bet you, if they (F)on ly (C)knew,

they would (G)just be jeal ous of us.

They don’t (C)know a bout the (F)up all (C)nights.

They don’t know I’ve wait ed (G)all my (Am)life just to find a love that (F)feels this (C)right.

Ba by, (C)they don’t know a bout (They don’t don’t know a bout...) the (C)they don’t know a bout us, don’t know a bout (C)us.)

us.

(Am)They don’t know a bout (F)us.

They Don't Know About Us by One Direction

9 people have learned this song

Easy piano arrangement in the key of C at 74 BPM. Difficulty: advanced. Color-coded notes — no sheet-reading skill required.

Teacher’s notes

This arrangement is a fantastic workout for smooth diatonic chord cycling in your left hand — you're moving through C, G, Am, F, and Em7 in block bass patterns, so focus on keeping those transitions even and unhurried at 74 BPM.

The Em7 shape is your sneaky challenge here; make sure your fingers settle into that added seventh cleanly rather than fumbling from the G chord before it.

Start hands-separate, locking in the left-hand chord changes until they feel automatic, then layer in the right-hand melody.

Watch for subtle syncopation in the vocal line — the melody often lands just off the beat, and rushing through those pushes is the most common stumbling point I see.

Loop the chorus slowly until the rhythmic feel sits in your body, then bring it up to tempo.

This is the piece that will truly solidify your I–V–vi–IV confidence under your fingers.

About “They Don't Know About Us”

What key is "They Don't Know About Us" in?: "They Don't Know About Us" by One Direction is in the key of C with a tempo of 74 BPM. Difficulty: advanced.
Is "They Don't Know About Us" easy to play on piano?: This arrangement is rated advanced. It requires comfort with chord shapes and basic hand independence. Expect 1-2 weeks of regular practice for a confident performance.
Can I play "They Don't Know About Us" without reading sheet music?: Yes. Our player offers a falling-notes mode (Synthesia-style) and a beginner mode with color-coded keys — both let you play along without reading traditional notation.
What chords are used in "They Don't Know About Us"?: This arrangement of "They Don't Know About Us" uses 5 chords: Am, C, Em7, F, G.
How long does it take to learn "They Don't Know About Us" on piano?: 2–4 weeks of consistent practice (20–30 min/day) for an intermediate player. Drill the tricky passages in isolation first.
What other songs by One Direction can I play here?: Try "DRAG ME DOWN", "OVER AGAIN", "HAPPILY". All are available in our player with color-coded notes; pick the one matching your level.