Superstar Taylor Swift has been revealing snippets of songs from her new record in the run up to its release and she has now shared a track called 'I Knew You Were Trouble', which she described as one of her personal favourites. 

She unveiled the cut on Good Morning America and explained that she wrote it about the kind of people you know are bad news, but end up falling for anyway:

"It's a song that's one of my favourites on the album because it sounds just as chaotic as the feeling was when I wrote it."

Although she didn't give any hints as to who it may be referring to, Swift added: "It's a song about, kind of, being frustrated with yourself because here you are heartbroken 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!"

'Red' is due to be released on October 22 and she recently posted the entire tracklisting for it, which includes a collaboration with singer-songwriter Ed Sheeran called 'Everything Has Changed'. Check out 'I Knew You Were Trouble' below: