There are different possible answers.. but many believe it's a song to her haters, since she refers to her success in the song and talks about how the enemy thinks she can't sing. However, it could also be about a certain someone that was, well, "mean" to her.
It is just the song with out lyrics
Taylor Lautner
Harry Styles
It is by Taylor Swift
It's Taylor Swift .
The song " I knew you were trouble" by Taylor Alison Swift is Harold Edward Styles. (Harry Styles)
Totally i knew you were trouble by Taylor swift !
Taylor Lautner
It is by Taylor Swift
Harry Styles
It's Taylor Swift .
no
yes she does on youtube
Harry Styles
The song " I knew you were trouble" by Taylor Alison Swift is Harold Edward Styles. (Harry Styles)
Her latest single, I Knew You Were Trouble.
it's rumored to be about Harry Styles
She confirmed that it was all about Harry Styles on their First met..