A laser triggered Adele. When someone walks passed a laser working with a Pi, a paper Adele is illuminated and her song 'Hello' begins to play. A photo is also taken from behind Adele to capture the persons reaction. This was set up in the woods to surprise runners. The laser light is reflected back to a light sensor in the processor housing. If the reflected light value drops low, i.e. the laser path is broken, then it triggers.