Fans queue overnight and around the block for £20 Book of Mormon tickets South Park resident Leah Winkler has spent 14 hours camping outside London's Prince of Wales theatre in Piccadilly. She may be a long way from her Colorado home, but she cites it as the reason behind her place in the queue for Book of Mormon tickets. South Park, located in the Rocky Mountains, turned from provincial middle-American town to household name when filmmakers Trey Parker and Matt Stone based a groundbreaking TV animation series there. In March 2011 they opened a musical called Book of Mormon on Broadway. After scooping nine Tony awards and a Grammy, and selling out a year in advance, it was announced Book of Mormon was coming to London last September. The first 14 weeks of the run have already sold out, but yesterday lunchtime a statement on the musical's Facebook page announced that all 1111 seats for the first preview performance were being sold for £20 from noon the next day. The superfans started planning, and Winkler and three others were the first in line at 10pm. By 12.15 the next day, the queue has stretched over 300 metres through the West End to the National Portrait Gallery, and security are warning fans they may not get tickets. Winkler is with Naomi Wong, a fellow visiting student at the University of East London and Maria Spjoetvoll, a Norwegian who now lives and works in the city. Wong and Spjoetvoll have both seen the musical in America. The musical is a satire about Mormon missionaries trying to help in a war-torn Ugandan village, and according to Wong (and the New York Times) is the "best musical that's been produced this century." For these women, and many other fans, Book of Mormon appeals because of its creators. Winkler says, "South Park has been a huge part of my life growing up, so when I heard [Parker and Stone] were writing a musical, and since I love theatre, I've been trying to see the show for two years." Wong adds, "As soon as I heard that the creators of South Park were working with the creators of Avenue Q, I knew I had to see it." Veteran of West End production Sonia Friedman (Legally Blonde, Clybourne Park, Death of a Salesman), is producing the show, and has come down to see the crowds. "It's so exciting," she tells me, "I was a bit nervous that only 30 or 40 people would be here. But the thing about this show is that it's so febrile, every time you do something the fans respond - it's quite extraordinary. Friedman says she's not phased about producing a show with such great expectations: "As a producer, you can spend decades trying to find an audience like this. And then they find you. The Book of Mormon is without precedent. It's breaking all the rules, it's breaking all the records. Friedman adds, "The point is, it lives up to expectations. It's not hype. The Book of Mormon preview is on February 25, and the show is currently booking until July 2013. Tickets are available here.