my name is Jamie Lovato and I'm Demi Lovato's little sister and this is about the big tour i went on with my sister , One Direction, BTR ( Big Time Rush ), Justin Bieber, Ariana Grande, Taylor Swift , Nicki Minaj, Conor Maynard, Little Mix, Avril Lavigne, The Janoskians, Marcus Butler, Alfie Deyes, Caspar Lee, Zoe Sugg ( Zoella ) and JLS.