Sorry if this is a bit of a daft question, but I have been reading through quite a few posts and many people mention Laura. Who is she? And why don't I know her?? I have the BBC app downloaded to my phone which I use to guide me through my walk/jogs (not really running yet!) and the voice in my ear comes from Jo Whiley, but I checked my app and there's no Laura! I feel like I'm missing something.