Demi Lovato on working with Olly Murs and The Vamps

Demi Lovato says Olly Murs is one of the "nicest guys" she's ever met and chats about working with The Vamps. Report by Hoodl. Like us on Facebook at http://www.facebook.com/theshowbiz411 and follow us on Twitter at http://twitter.com/theshowbiz411