Ethel, Schmethel: E. Faye Butler’s turn as Mama Rose in Gypsy is definitive. Porchlight’s staging of the ultimate show-biz musical captures the seediness the tale’s Great Depression setting and the glitz of burlesque. Stripper Gypsy Rose Lee shows more skin. But with barn-burners including “Rose’s Turn” and “Everything’s Coming Up Roses,” Butler’s Mama Rose is the show’s heart. Let her entertain you. Gypsy runs through Dec. 29 at the Porchlight Theatre at the Ruth Page Center for the Arts, 1016 N. Dearborn St. Tickets are $61-$74 each; visit http://porchlightmusictheatre.org.