John Anthony Baldessari (born June 17, 1931) is an American conceptual artist known for his work featuring found photography and appropriated images. Description from imgarcade.com. I searched for this on bing.com/images
John Baldessari cut out shapes and images and fills them in with bright bold colours on top og black and white photographs. he normally uses circles to cut out people faces which look really effective and stannd out. he uses shape alot in hes pieces. he uses black and white photographs for the bright coloured shapes to stand out more to contrast as well.