Nightwish will be touring the U.S. next April/May. The band will also be bringing along Delain, as support. Tour Dates: 04/09/15 Hammerstein Ballroom – New York, NY 04/10/15 Electric Factory – Philadelphia, PA 04/11/15 Palladium – Worcester, MA 04/13/15 Capitole Theatre – Quebec City, QC – CANADA 04/14/15 Phoenix Concert Theater – Toronto, ON –…