I Love You, You're Perfect, Now Change is a comeic musical written by Joe DiPietro and Jimmy Roberts. Of the shows currently open off-Broadway, it is the longest-running. It premiered in 1996 at New York City's Westside Theatre, where it continues to run. First produced in the UK at the Churchill Theatre, Bromley followed by a short season in the West End Comedy Theatre in 1999, it was revived in London at the Jermyn Street Theatre in 2005, presented by Popular Productions Ltd. A Mandarin Chinese version debuted in Beijing, China on June 20, 2007. And it had been also reproduced by LANCreators, Taiwan's only group producing Broadway musicals, and performed at Crown Theatre, Taipei, from November 3, 2007, in English.