'Bieber fever' takes over the Consumer Electronics Show in Las Vegas.br The teenage super star was there to unveil a new robot for TOSY Robotics - and by the look on his face, he was amazed by the new state-of-the-art robot.br The gadget is a portable speaker that also doubles as a dancing device.br Fans packed the length of the convention show floor and waited several hours just to get a peek of the singer - with a lucky few walking away with an autograph.br Alicia Powell, Reuters.