The Blue Room, one of Pablo Picasso’s earliest masterpieces, has been hiding a secret. Scientists have discovered an entirely different painting sitting just beneath it, The Washington Post reports. Using infrared cameras and x-rays, researchers mapped and identified the hidden colors, revealing a man with a bow tie. But who’s the man? That’s the next mystery they are aiming to solve. In the meantime, the scientists would like to recreate the image using the same colors chosen by Picasso.