Jenn, Googalitis struck me too. Here is a comment from an article about a dancing robot. So the Taxi Dancers might be robots in the future, what do you think ? "Japanese scientists have developed a dancing robot that can follow a human dancer's lead. Professor Kazuhiro Kosuge, leader of the Tohoku University team that developed the robot, says future versions will be able to move in sync with humans. The Ms. DanceR (Mobile Smart Dance Robot) predicts the dancer's next move through hand pressure applied to its arms and back. Equipped with a computer, sensors and batteries, it can move in any direction on four wheels and has memory for steps necessary to dance the waltz. Tomohiro Hayashi, a student of Tohoku University, demonstrated the robot by leading it through a waltz for photographers. Why did the team pick the Waltz and not the Tango? "The robot cannot move so fast, and tango is not easy for the robot at this moment," states Kosuge. Tomohiro Hayashi, a student of Tohoku University, demonstrated the robot by leading it through a waltz for photographers. The robot is being developed to understand human-human interaction/communication mechanism and to synthesize it as human-robot interaction. The mechanism designed for human-robot interaction could be utilized when designing man-machine systems. "