Is "I Knew You Were Trouble" easy to play on piano?

This is an advanced arrangement in the key of G at 150 BPM. Use our speed control to slow it down while learning the trickier sections.

What key is "I Knew You Were Trouble" in?

"I Knew You Were Trouble" by Taylor Swift is in the key of G. Our simplified arrangement makes it accessible with color-coded notes and interactive playback.

Learn "I KNEW YOU WERE TROUBLE" by Taylor Swift on Piano

Master "I KNEW YOU WERE TROUBLE" by Taylor Swift with our interactive piano player. This hard-level Pop arrangement is in the key of G at 150 BPM, making it a rewarding piece for advanced players to master.

Tip: Break "I KNEW YOU WERE TROUBLE" into sections and master each one separately. The speed control lets you drill difficult passages at any tempo until they feel natural.

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.

Song Details

Category: Pop
Key: G
Tempo: 150 BPM
Difficulty: hard
Artist: Taylor Swift

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How to Play "I Knew You Were Trouble" on Piano

1
Pick a practice mode — Choose from Fall Down, Beginner, Lead Sheet, Bar Sheet, or Simple Sheet — each mode visualizes the music differently to match your learning style.
2
Practice each hand separately — Use the Left, Right, and Both buttons to isolate the bass or treble part and build muscle memory one hand at a time.
3
Adjust speed and turn on metronome — Slow down to 50% while learning, then gradually speed up. Enable the metronome to keep steady timing.
4
Loop a section — Select a tricky part and loop it until you nail it. Perfect for mastering difficult passages.
5
Download sheet music — Export a PDF of the sheet music to print out and practice on your real piano anytime, anywhere.