Taylor Swift's 1989: Her Biggest Album Returns With New Tracks From The Vault

On Friday, Taylor Swift released a new version of 1989 - the biggest-selling album of her career, and the one that definitively turned her into a pop star.

Featuring hits like Shake It Off, Blank Space and Style, it was originally written during the 2013-14 Red Tour, with demos stored on her phone in a folder named "Sailor Twips".