Return of Mr Nasty: Simon Cowell makes 19-year-old singer cry on Britain's Got Talent as singer Jai and dancer Steven go through

By JODY THOMPSONDown and out: Jessica, who was comforted by co-host Declan McDonnelly, was then voted out of the competitionHe started off on British television screens as being the ruthless baddie we all loved to hate before toning his cutting remarks down. But Simon Cowell was back all guns blazing as Mr Nasty tonight, reducing a pretty 19-year-old singer to tears on Britain's Got Talent with