Def Leppard – with “special guest” Heart – will hit the road this summer for a major North American tour. Kicking off in West Palm Beach, Florida on June 15, the two powerhouse hit-makers are scheduled to perform 45 concerts in the U.S. and Canada. Most shows will take place in amphitheaters though a number of arena shows are scheduled. The tour will conclude on September 15 in Auburn, Washington.