The RSPCA is set to investigate Britain's Got Talent 2015 over walking dog Wendy, as owner Marc Metral denies cruelty.
What had been a standout audition at the weekend has turned into a bit of a controversial act after the secret behind the trick was revealed.
It's understood that 'talking and singing' Wendy is possible thanks to a fake, remotely operated mouth over her real one.
Many have slammed the setup as cruel and a spokesperson for the RSPCA said this week: "It is not clear if Miss Wendy was wearing any sort of muzzle or mask during the performance on
"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."
TV watchdog has confirmed it has received complaints while ITV itself has also had 35 objections.
However Frenchman Marc has insisted that Wendy loves to perform and the act isn't cruel.
“I’ve been working with Wendy since she was a puppy, training and caring for her for the last five years," he said today. “She loves performing and I would never put her in a situation that would cause her distress.
“She gets excited when we work and is always comfortable on stage.”
A spokesperson for Britain's Got Talent commented: "We take the welfare of all of our acts, including animals, incredibly seriously. We consult at length with their owners and where necessary take third party advice.
"Marc has a huge amount of experience having worked with animals since 1980, and with Wendy for the last five years."
Britain's Got Talent will continue this Saturday night on ITV.