With Special Guest David Archuleta to Orleans Arena July 18 Las Vegas—Hollywood recording artist and Disney Channel star Demi Lovato kicks off her North American headline tour this summer and will make a stop at the Orleans Arena on July 18 with American Idol finalist, David Archuleta. The past year has been a whirlwind for Lovato, starting in June with the debut of her first Disney Channel Original Movie, Camp Rock, followed by the No. 2 debut of her first CD, “Don’t Forget,” a national tou