Here's just how the talking dog act on Britain's Got Talent 2015 works, supposedly.
Marc Metral and his talking dog Wendy wowed the judges on Britain's Got Talent this weekend to get through to the next round.
The Frenchman had four yeses from the panel to sail through to the next round after leaving Simon Cowell open mouthed with his act.
Speaking to us last week, Simon said: "One of my favourites is on the first show, it's a dog that does something I've never ever seen in my life."
He added: "I think everyone is going to be talking about this act on Monday morning. I was left literally open mouthed when I saw it."
However David Walliams was quick to bring Simon back down to earth by reminding him that the dog really wasn't talking and singing.
Nevertheless, Marc's ventriloquism perfectly in time to Wendy's mouth movements proved to be rather impressive.
So how is it done? Well it doesn't involve a robot dog, a very elaborate puppet or (fortunately for the dog!) electric shocks.
The secret - at least used by other talking dog acts - is apparently fairly simple: A fake, remote controlled mouthpiece attached to the dog.
However the 'fake mouth' has been critized by animal fans as being cruel.
A spokesperson for the RCSPA said: "It is not clear if Miss Wendy was wearing any sort of muzzle or mask during the performance on Britain's Got Talent, however the RSPCA would be very concerned if it became clear that she was caused distress at any point.
"We will be contacting the show to ascertain what methods were used and how they impacted on the dog."
A shockingly similar act appeared some three years ago over on BGT's sister show the other side of the Atlantic America's Got Talent, which shows this method rather clearly.