Finnish / Dutch / British symphonic metallers NIGHTWISH will embark on a 27-date North American headlining tour in the spring. The trek will launch in New York City on April 9, hit three Canadian cities plus Chicago, San Francisco, and Los Angeles, then close out in Silver Springs, Maryland on May 14. Support at all dates will come from Dutch symphonic metallers DELAIN. Commented NIGHTWISH bassist/vocalist Marco Hietala: "Our work on the new album has been going with serious productive sp...