Singer Adekunle Gold has left many people on social media laughing over his hilarious reaction when he spotted a self-driving car in San Francisco, USA.    The singer and a group of people were walking on the road when the car passed by. Seeing that the car had no driver but was moving effectively, Adekunle Gold expressed his surprise.   ‘’I have not seen this before o! America wonder!” he said   Watch a video showing the moment he spotted …