Simmons and KISS are gearing up to launch a co-headlining summer tour of North America with Def Leppard; the trek starts June 23rd in West Valley City, Utah.

The band's latest greatest hits package, "KISS 40", recently debuted at No. 30 on the US Billboard 200. The 40-track collection presents one song from every major album release by the group, live selections and "Reputation", an unreleased demo from 1977.