As expected, Freedom Hill's loss is Guns N' Roses' gain.Seattle rockers Alice In Chains have been announced as the opening act for GNR's June 23 show at Detroit's Ford Field, the kick-off of the group's Not In This Lifetime Tour reuniting founding members Axl Rose, Slash and Duff McKagan. Alice In Chains was previously scheduled to perform July 17 at the Freedom Hill Amphitheatre but pulled the date just a few days after it was announced.