The second series of Britain's Got Talent has entered its third week - with some auditions which the judges would rather forget. This week, Simon Cowell, Piers Morgan and Amanda Holden found themselves in Blackpool, facing what Cowell described as an "end of the pier" selection of acts. Among the highlights - or lowlights - were singing pensioner Brenda, who after comparing herself to Britney Spears came a cropper when the wrong backing track was played for her audition. However there was better news for eight-year-old Alex, who after failing to impress the judges with his singing, was advised to reinvent himself as a comedian, and given another chance by the panel. He returned with his new act - and won his ticket to the semi-final after the judges unanimously voted him through. Quick change duo Vizage, meanwhile received a mixed response for their act, with the judges praising the pair for their rapid fire costume changes, but criticising them for their singing. "If you had just come out here without all the quick change and just sung that song, you'd have lasted five seconds," Simon told duo member Vicky. However the pair made it through to the next round despite getting the thumbs down from Piers. Meanwhile, club performer Nicky Flash kept the judges and audiences entertained for all the wrong reasons after he attempted a daring escape from a postbag - and got stuck. And following yet more bad impressionists, comedians and performers, Simon Cowell called it "the worst day of auditions I have ever ever seen in my life". However there was better news for singing duo Per Diem. Supermarket workers and lifelong best friends Graham and Terry impressed the panel and breezed through to the semi-final, with Simon praising their "likeability factor". Back in London, more acts made it through to the next stage, including dance duo Signature - whose act began with a solo, Michael Jackson-inspired routine. A second person, dressed as a stage cleaner, took to the stage and the pair appeared to argue before he revealed himself to be a second dancer. The pair then performed a Bollywood-inspired dance which wowed both judges and audience. Also through to the semi-final was teenage dancer George Sampson, who returned to the Britain's Got Talent stage after narrowly missing out on a place in the finals in 2007. His energetic breakdancing led Simon to describe him as "the best dancer we have had by a clear mile".
