The third installment of the North American Gigantour officially launched last night (Saturday, April 12) in Denver, Colorado with headliner Megadeth, Swedish metal band In Flames, Finland's Children Of Bodom, Arizona's modern extreme act Job For A Cowboy and Oakland, CA heavy power trio High On Fire. The 29-date trek will criss-cross North America and is scheduled to wrap May 22 in Phoenix, Arizona. Tour details and tickets are