Ant and Dec kicked off their new series of Saturday Night Takeaway last week by pranking Jeremy Clarkson - but this week they're turning their attention to members of the public.
The presenters love to set up jokes and tricks for their ITV entertainment show and recent visitors to London's O2 might find themselves the stars of this week's show if they had a strange experience arriving at the venue.
Setting themselves up as the voice behind an apparently automated check-in desk, a preview clip of Saturday's episode shows them in hysterics as they trick people approaching the booth.
Watch: Ant and Dec prank visitors to The O2
It includes a man being asked for the second letter of the alphabet and told his answer "B" was wrong, a woman asked to perform YMCA moves in a scanning booth, and a man who is given a pair of red heels and a French horn as his returned items from a security scanner.
Last week, Ant and Dec pranked one of the top people on their "hit list" for the show as they managed to convince a grumpy Clarkson that they were soil rights protesters at his farm.
Read more: All you need to know about Starstruck
In Saturday's episode, the cast of Mary Poppins The Musical will join them for the End of the Show Show, Jordan North will be back to give out prizes for segment Gift on a Shift, Fleur East and Andi Peters return as presenters and a new studio game, Kiddie-oke, launches.
The guest announcer will be Queen singer Adam Lambert, who is currently appearing as a judge in ITV singing contest Starstruck.
Last Saturday's series opener caused controversy when Ant and Dec dressed up as drag queens for the End of the Show Show, which featured the Drag Race UK winners.
It sparked a number of Ofcom complaints from viewers, as did the Clarkson prank.
Ant & Dec's Saturday Night Takeaway continues on Saturday at 7pm on ITV.
Watch: Ant and Dec prank Jeremy Clarkson in farm protest