Pop art collage called 'Just what is it that makes today's homes so different, so appealing? 1956 by Richard Hamilton is one of the earliest pieces labeled Pop Art. Hamilton died in
A Survey Of Queer Feminist Artists Who Are Challenging Today's 'Body Oppression' via Huffington Post Arts. Although I object to the NSFW tag!
Paintings - Carlos San Millán, Paintings and drawings
The Citizen Richard Hamilton