Britain's Got Talent's singing comedian Robert White may have wowed the judges on the reality show's returning weekend, but he previously spent three months in prison for a prank gone wrong.

White, who has autism and Asperger syndrome, received four yeses from the judges to go through to the next round of the competition.

However, it seems not all of his previous stunts have been such crowd pleasers.

Speaking to The Sun, the comic revealed he was jailed for three months after initially being talked to by officers after stepping out in front of a police car.

Recapping the incident, White said he was picked up by police whilst wearing a ball gown in an attempt to surprise his ex at work. He was also carrying a music stand, which he quipped was "a gun", before jokingly asked the officers to hand over their money.

The gag seriously backfired when White was subsequently charged with armed robbery, before it was reduced to attempt to threaten with an imitation firearm, and he was jailed for three months.

So, OK, perhaps it wasn't the best idea.

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"I'd misunderstand things and, one time, that led to a practical joke the police mistranslated as a crime," he said. "I got three months in Wandsworth Prison.

"In the police interview, I called [the music stand] a gun because – for the joke – I was a comedy armed robber.

"I was going to say, 'Hand over the notes' – you know, it was a music stand – but then I decided I was going to say, 'Music stand and deliver'."

Oh dear.

Britain's Got Talent continues on ITV on Saturday (April 21) at 8pm.

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