Taylor Swift and Nigel Barker have collaborated on a book out this month.

The We Are Never Ever Getting Back Together singer was pictured over one whole day by the America's Next Top Model star as they travelled around southern California, and the results have been collated into an extensive book called 8 Hours/Taylor Swift.

Speaking to Entertainment Weekly, Nigel said: "She's not necessarily known for her sex appeal, but she is someone who is emerging in a way that I've never seen. You'll see her transform from a young girl into this rock and roll superstar, totally in your face.

"It's unbelievable how she's changed and of course how the music is changing and evolving. She's one to watch."

The reality show judge also praised Taylor for being so professional during the photoshoot and making everything run so smoothly.

Barker added: "Photographing one of the most famous pop icons of our time could have been a challenge, but working with Taylor was like a dream sequence. In one day, we managed to shoot an entire book's worth of images and multiple short films."

8 Hours/Taylor Swift is due to be published for a limited time from tomorrow (12th November) .