Cavlin Harris daubed himself and 16 girls with electricity-conducting ink to create a 'human synthesizer" for his new single, "Ready For The Weekend". Ink on his hands allows currents to be passed through the girls' bodies without shocking them.   They then step on electronic pads to trigger notes, while Calvin plays the main keyboard line, to perform the track. The idea was created by Calvin and Royal College of Art students and filming took place at Jerwood Studios in East London.