Mike Portnoy w/ Dream Theatre

Twisted Sister have announced that Mike Portnoy (Dream Theater, Adrenaline Mob, Winery Dogs) will take over the drum kit for AJ Pero, who died of a heart attack in March. He'll be there for the Vegas show and for the AJ Pero tribute concert happening at NJ's Starland Ballroom on June 13. Tickets for the NJ show are on sale.

The long-running NY rockers have also announced they'll be on the road in 2016 for the "Forty and F*ck It" tour that will both celebrate four decades of the band and "formally close the touring chapter of their illustrious and legendary career." Dates for this farewell tour have not been announced yet.