Ben Johnson is a magician, danger act, and dancer who auditioned for Series 4 of Britain's Got Talent. He was aged 15 at the time of his audition and hails from Manchester. Before his audition Johnson stated that he was inspired by both Dynamo and David Blaine to become a magician.
In his audition, Johnson danced before playing a horn made of cards, then going onto wrap the cable of his headphones around his neck, and unwrapping them, before going on to perform a breakdance. Piers buzzed his performance. Amanda remarked it were good to come on the show and ‘Think of something different and put something together', with Piers going on to describe Johnson's performance as being ‘Very silly'. He advanced onto the following round, however he failed to reach the Semi-Finals.