Over The Rainbow is hosted by Graham Norton. The series sets out to find the female lead in the West End musical of the same name. The judges on the show are Andrew Lloyd Webber, Charlotte Church, Sheila Hancock and John Partridge. As well as trying to find someone to play Dorothy the show is also looking for a dog to play Toto. Each week the viewers have to vote for their favourites with the bottom two having to sing again before the judges decide who will be going home.