Found this on You Tube. It's a performance of Howard Jones, Herbbie Hancock, Thomas Dolby and Stevie Wonder. Check out the racks of synthesizers these guys play. I never knew, these guys knew each other, let alone, perform together.

http://www.youtube.com/watch?v=ZZEGHnAxEpo

I'd guess this was probably the only time they all played together. I imagine this was a one off promotional event.

Thanks for the link to this rare footage.

Your Welcome, Nigel!