Bob Mackie on bringing Cher’s fashion to the stage

“The Cher Show” recreates Bob Mackie’s decades-long collaboration with Cher in two ways. First, there’s the parade of Cher’s eye-popping looks, designed by Mackie for the show and ranging from her mohawk-topped Academy Awards outfit to her “If I Could Turn Back Time” black leotard. And then there’s the appearance of Mackie himself as a character in the show. While Mackie says the musical portrays him a “bit grander” than he is in real life — which he acknowledges as a necessity of the stage — several of the costumes were painstakingly recreated to be true to the originals. Mackie,…