Kelly wrote a play "around 2002" called "White Pig", which he has described as "a weird play […] about a boy called Edward who had this weird life and non-real characters would wander into his life and he would have no idea what was going on. He was incredibly passive as a character and he had these weird parents obsessed with food." Kelly has said that "I used to have lots of these really odd meetings with theatres where I’d go in and they’d tell me how much they loved the play and then tell me they weren’t going to do it". The play was eventually performed publicly at Jacksons Lane by students of Mountview on 30 September 2016. However, no professional production has been mounted and the script remains unpublished.