Blimey 'guest'. Could you give us some clues about what you've managed to google already?
Could it be Laura Doggett?
Sorry, you'll need to copy and paste this :
http://www.itv.com/news/west/update/2014-12-16/watch-full-interview-with-laura-doggett-singing-star-of-the-new-broadchurch-trailer/