Definitely not a cover of the Judas Priest heavy metal classic, Emeli wrote this hushed, acoustic song about doing anything for love for her sister. She explained to Q magazine: "I wrote it for my sister. We're very close to each other, very close in age as well and we've always had a really tight relationship. She's probably the only person I'd do anything for, so that's what the songs about, breaking the law for someone."