OTTAWA.- The National Gallery of Canada (NGC) is doubling up with Damien Hirst in its search for identical twins who are willing to take part in a recreation of the artist’s 1992 performance Ingo, Torsten. Successful candidates will perform in conjunction with the NGC’s summer exhibition “Pop Life: Art in a Material World”, organized by Tate Modern and on view from June 11 to September 19, 2010. In 1992, at the Cologne Unfair art fair, British artist Damien Hirst commissioned a set of identical twins named Ingo and Torsten to spend time sitting in front of his trademark spot paintings. Dressed in identical clothing, the twins could read, knit or even play chess, so long as their actions were alike. Titled after the twins, the performance was about surface appearances, individuality, and making a scene. Now, in 2010, the NGC plans to re-stage this iconic performance and invites identical twins to take part in this recr