Nitin Ganatra, Anita Mangan, Laurence Llewelyn-Bowen, Toyah Willcox, Leigh Francis and Gemma Cairney join six school pupils selected as part of Sky Arts Access All Arts initiative to paint portraits of Konnie Huq, Lee Ridley and Chi-Chi Nwanoku.

Stephen Mangan and Joan Bakewell host the first heat of this year's competition from Battersea Art Centre, where a new crop of artists looks to impress the judges with a portrait of Richard Curtis, Emma Freud or Fleur East.