Two robot waiters, who have just debuted in a restaurant, have already shot to fame in east China's Shanghai. The robots, both named 'Casper', are 'employed' by Pizza Hut's latest Shanghai outlet, which is located on the basement floor of the Shanghai Tower, the world's second tallest building. The two-and-a-half foot tall, bow-tied robot is considered by many as the cutest robot they've ever seen. Click this video to get a look.

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