Denise van Outen and Charlotte Crosby are set to appear in a celebrity version of 'The Circle'. The 'Neighbours' actress and the 'Geordie Shore' star are expected to be joined on the Channel 4 show - which is hosted by Emma Willis - by YouTuber Saffron Barker, 'RuPaul's Drag Race UK' star Baga Chipz, and TV presenter Nadia Sawalha.