who is taylor swift's song i knew you were trouble about
I Knew You Were Trouble The song was written by Swift, Max Martin and Shellback, the latter two also producing the track.[5] When Swift previewed the song on Good Morning America on October 8, 2012, she said that it was "one of [the singer's] favorite songs on the album because it sounds just as chaotic as the feeling was when I wrote it. The song is about being frustrated with yourself because here you are heart-broken and you knew when you first saw that person you saw all these red flags and you just went for it anyway, so shame on me."[6][7] Initially the media had speculated the song to be about her ex-boyfriend, singer John Mayer, in light of her previous song "Dear John" from her third studio album, Speak Now (2010).[8] In an interview with MTV, Swift further explained that the song told the story of a good girl falling for the bad boy and continues about a "toxic relationship" between them, resulting in break-up.[9] Talking in-depth about "I Knew You Were Trouble":