See more from Britain's Got Talent at http://itv.com/talent
Ant & Dec got up to a whole lot of shenanigans with Stephen Mulhern on this series of BGMT.
Have a look at them play the Yes or No game, Sheath the Sword and see if Dec knows how to put a nappy on Ant!
SUBSCRIBE: http://bit.ly/BGTsub
Facebook: http://www.facebook.com/BGT
Twitter: http://twitter.com/BGT
Instagram: https://www.instagram.com/bgt/
Shop: https://shop.britainsgottalent.co.uk