Following adaptations of actor and writer David Walliams' Mr Stink and Gangsta Granny in 2012 and 2013 respectively, the BBC has commissioned an adaptation of Walliams' first children's book, Boy in the Dress, as a Christmas 2014 special.
Boy in the Dress tells the story of a 12-year-old "who enjoys cross-dressing, and the reactions of his family and friends".
Commenting, Walliams said: "I am over the moon that my first novel for children is going to be on BBC One at Christmas.
"I was very pleased with the adaptations of Mr Stink and Gangsta Granny, and I trust Boy in the Dress will delight and surprise a family audience."
Shane Allen, BBC Controller, Comedy Commissioning, said: "Boy in the Dress is a very touching, hilarious and poignant story of why being different is something to celebrate.
"As with David's other novel adaptations, I have no doubt this will attract an exceptional cast and be a special Christmas treat for all the family."