The light at the end of the tunnel shines again this summer as Andrew Lloyd Webber’s Starlight Express returns to London. The original production closed in 2002 after almost 18 years, making it the West End’s ninth longest-running show. For me it was the gateway to a love of theatre and performing which has never left – and also means I can’t visit Pizza Express without humming the title track. Here’s why we should hail the musical’s return …