Amy Gledhill, Armando Iannucci, Joanna Page, Joel Dommett, and Kumail Nanjiani take a swing at a fluffy and furious sleepover tradition.

Taskmaster's Alex Horne was left looking red-faced after he had to bellow at his team as part of a task. The TV star is known as Greg Davies' sidekick on the Channel 4 show and tends to keep his cool.

His middling performance is a warning for future celebrity contestants.

Add Yahoo as a preferred source to see more of our stories on Google. Watch: 'Taskmaster' season finale challenge, 'the greatest pillow fight of all time' Credit: Mashable Armando Iannucci and Joanna ...