TOKYO, Sept 4: In a restaurant down an alley in one of Tokyo’s best-known red light districts, four massive female robots wink and wave as they lumber to the beat of traditional Japanese drums and a Lady Gaga dance tune. It’s show time at the ‘Robot Restaurant,’ a new and high-tech take on the city’s decades-old cabaret scene that puts a friendly, if unusual, face on the robot technology in which Japan is a world leader. (AGENCIES)