I Knew You Were Trouble是Taylor Swift演唱的一首流行歌曲，歌词主要由Taylor编写，马克斯•马丁、Shellback谱曲，收录在Taylor于2012年发行的第四张专辑《Red》中，是该专辑的第三波单曲。

《I Knew You Were Trouble》凭借首周强大的数字音乐下载（销售量超过416,000次），而位居公告牌百强单曲榜季军巨峰，于2013年11月4日晚荣获第一届YouTube音乐颁奖礼颁发的年度效应大奖。

上方是I Knew You Were Trouble钢琴谱，希望大家喜欢。

(Verse 1)
Once upon a time, a few mistakes ago
I was in your sights, you got me alone
You found me, you found me
You found me-e-e-e-e
I guess you didn't care and I guess I liked that
And when I fell hard, you took a step back
Without me, without me
Without me-e-e-e
(Pre-Chorus)
And he's long gone
When he's next to me
And I realize, the blame is on me
(Chorus)
'Cause I knew you were trouble when you walked in
So shame on me now, flew me to places I'd never been
Till you put me down
Oh I knew you were trouble when you walked in
So shame on me now, flew me to places I'd never been
Now I'm lying on the cold hard ground
Oh~a, oh~a, oh,trouble, trouble, trouble
Oh~a, oh~a,oh,trouble, trouble, trouble
(Verse 2)
No apologies, he'll never see you cry
Pretends he doesn't know that he's the reason why
You're drowning, you're drowning
You're drowning-ing-ing-ing-ing
And I heard you moved on from whispers on the street
A new notch in your belt is all I'll ever be
And now I see, I now I see
I now I see-e-e-e-e
(Pre-Chorus)
He was long gone
When he met me
And I realize the joke is on me
Hey!
(Chorus)
I knew you were trouble when you walked in
So shame on me now, flew me to places I'd never been
Till you put me down
Oh I knew you were trouble when you walked in
So shame on me now, flew me to places I'd never been
Now I'm lying on the cold hard ground
Oh~a, oh~a,oh,trouble, trouble, trouble
Oh~a, oh~a,oh,trouble, trouble, trouble
(Bridge)
When the saddest fear
Comes creeping in
That you never loved me... or her or anyone or anything
Yeah!
(Chorus)
I knew you were trouble when you walked in
So shame on me now, flew me to places I'd never been
Till you put me down
Oh I knew you were trouble when you walked in
So shame on me now, flew me to places I'd never been
Now I'm lying on the cold hard ground
Oh~a, oh~a,oh,trouble, trouble, trouble
Oh~a, oh~a,oh,trouble, trouble, trouble
I knew you were trouble when you walked in
Trouble, trouble, trouble
I knew you were trouble when you walked in
Trouble, trouble, trouble!