article_snippet.sent: Mike Portnoy replaces A.J. Pero, who died March 20.
article_snippet.sent: Band will also perform two shows in Pero's honor: one at Las Vegas' Hard Rock Hotel and Casino, the other at the Starland Ballroom in Sayreville, New Jersey.
article_snippet.sent: The latter is in support of Pero's family.
article_snippet.sent: Twisted Sister drummer A.J. Pero's biggest hit,
highlights_snippet.sent: Twisted Sister drummer A.J. Pero died in March .