I Knew You Were Trouble

by Taylor Swift
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Learn a simple version, phrase by phrase: the melody, then easy chords.

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Lyrics

Once up on a time a few mis takes a go, Pre (D)I was in your sights, that you got me a lone.

You (Em)found me, you found me, you (C)found me, ee, ee, ee, ee.

And I (G)guess you did n’t care and I guess I liked the that.

And (D)when I fell your hard, you took a step er back with (Em)out I me, with out I me, with (C)out I me, ee, ee, ee, ee.

And he’s long

(D)gone when he’s next

to (Em)me.

And I re

a lize the blame is on me.

’Cause (Em)I knew you were (C)trou ble when you walked in,

so (G)shame on (D)me now.

Flew me to (C)plac es I’ve nev er been

till you (G)put me (D)down.

Oh, (Em)I knew you were (C)trou ble when you walked in,

so (G)shame on (D)me now.

Flew me to (C)plac es I’ve nev er been.

Now I’m (G)ly (CN.C.)ing on the cold, hard (Em)ground.

Oh,

oh,

trou ble, (G)trou ble, (D)trou ble.

Oh,

oh,

trou ble, (G)trou ble, (D)trou ble.

No a pol o gies, he’ll nev er see you cry.

Pre (D)tends he does n’t know that he’s the rea son why you’re (Em)drown ing, you’re drown ing, you’re (C)drown ing, ing, ing, ing, ing.

And I (G)heard you moved n’t on from I whis pers on the street.

A (D)new notch in your belt is all I’ll ev er be.

And (Em)now I see, with now I see, with (C)now I see, ee, ee, ee, ee.

He was long

(D)gone when he met

to (Em)me.

And I re a lize the joke is on me.

’Cause (Em)I knew you were (C)trou ble when you walked in,

so (G)shame on (D)me now.

Flew me to (C)plac es I’ve nev er been

till you (G)put me (D)down.

Oh, (Em)I knew you were (C)trou ble when you walked in,

so (G)shame on (D)me now.

Flew me to (C)plac es I’ve nev er been.

Now I’m (G)ly (CN.C.)ing on the cold, hard (Em)ground.

Oh,

oh,

trou ble, (G)trou ble, (D)trou ble.

Oh,

oh,

trou ble, (G)trou ble, (D)trou ble.

(G)trou ble, (D)trou ble.

And the (C)sad dest fear

comes (Em)creep in’ in

that you (C)nev er loved me or her, or (D)an y one, or an y thing.

Yeah,

(G)trou ble, (D)trou ble.

(Em)I knew you were (C)trou ble when you walked in.

Trou ble, (G)trou ble, (D)trou ble.

(Em)I knew you were (C)trou ble when you walked in.

Trou ble, (G)trou ble, (CN.C.)trou ble.

I Knew You Were Trouble — Classic Piano Sheet Music

59 people have learned this song

Read "I Knew You Were Trouble" by Taylor Swift in classic piano notation — both hands, real chords + notes, in the published key of G. Engraved server-side from the publisher MusicXML; click any note to jump there as the score follows along at 150 BPM.

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

About “I Knew You Were Trouble”

Is this the same engraved sheet music a piano teacher would print for "I Knew You Were Trouble"?
Yes — the score is rendered server-side from the publisher MusicXML using Verovio (the same engine RISM and OpenScore use). Standard piano notation, treble + bass staves, real chord symbols, key signature G. Print-quality and identical to what you'd see in a printed piano book.
What key is "I Knew You Were Trouble" by Taylor Swift played in?
I Knew You Were Trouble 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 "I Knew You Were Trouble"?
The arrangement plays at 150 BPM. Use the speed control (10-200%) to practice slower or play faster.
Is "I Knew You Were Trouble" 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 "I Knew You Were Trouble"?
Yes — registered users can download PDF sheet music, plus MIDI and MusicXML files for use in other notation software.
Who composed "I Knew You Were Trouble"?
"I Knew You Were Trouble" was originally performed by Taylor Swift. The Super Simple Piano arrangement is simplified for beginner-to-intermediate players.
What chords are used in "I Knew You Were Trouble"?
This arrangement uses 4 chords: C, D, Em, G. Only a handful of chords — beginner-friendly.
What other songs by Taylor Swift can I play here?
Try "GETAWAY CAR", "THE LAST TIME", "ENCHANTED". All are in our player with color-coded notes; pick the one matching your level.
Is this the same notation a piano teacher would hand me?
Yes — "I Knew You Were Trouble" is rendered at engraver quality (the Verovio engine, the same toolkit RISM and OpenScore editions use) from the original publisher MusicXML. You get standard piano notation: treble + bass clefs, key signature G, time signature, beams, dynamics — everything a printed sheet music book would have. Great for piano students learning to read music properly.
What's the difference between Sheet Music and the other modes here?
Sheet Music is the "classic" view — the one your piano teacher uses. Other modes (Beginner, Fall Down, Simple Sheet, Lead Sheet) trade real notation for color-coded notes and falling shapes to help absolute beginners. Use Sheet Music once you're ready to read both hands at once from real notation.
Can I practice from this view at my own pace?
Yes — slow the tempo from 150 BPM down (or up) without changing the pitch. The score scrolls in time and the currently playing note is highlighted, so you can drill a tough bar at half speed and bump it up once it feels comfortable.
Why can I click a note in the score?
Every notehead is interactive. Click and the audio jumps to that moment so you can drill a specific phrase or bar instead of replaying from the top. The currently playing note is highlighted as the music advances so your eye never loses its place.
Can I download the sheet music as a PDF?
Yes — Sheet Music PDF is one of the download formats for this song. The engraved score prints page-perfect on A4 / Letter so you can practice from paper as well as on screen.