Twisted Sister have announced a pair of concerts to pay tribute to their late drummer A.J. Pero, who passed away March 20th. Dee Snider and company also revealed that longtime Dream Theatre drummer Mike Portnoy will join Twisted Sister for all of the band’s upcoming 2015 concerts, including the tribute shows….

Source: RollingStone
Link: Twisted Sister Set A.J. Pero Tribute Shows, 2016 Farewell Tour