Hack Circus aims to turn the rule-abiding approach of TED talks on its head

"There's no I in TEAM / but there is a U in FAILURE! / Don't be shy to dream / Join in my bacchanalia!" Leila Johnston, 35, the self-proclaimed "ringmaster" of Hack Circus, is in the basement of a pub in King's Cross, rapping. Quite slickly, in fact. She's never done so before, nor will do ever again, but therein lies the essence of a Hack Circus show: a one-off, technology-driven performance, comprising misdirection, information, fantasy and entertainment.