3AW's Derryn Hinch will be part of The Rocky Horror when it opens in Melbourne next month. The 64-year-old drive presenter has been cast as the narrator over a four week stint. Speaking during a walk in Melbourne on today, the upbeat radio host said he was feeling fit and healthy and excited about joining the show. "Two years ago, you look at pictures of me then and I was nearly dead," The Rocky Horror Show opens in Melbourne on September 18.