Whilst we're on the subject of Pop Art, how can I not include some Andy Warhol? The legend that is... for me he is the epitomy of the movement. He is the only artist I have come across that could turn something so banal as a tin of condensed soup into an artistic icon!
There was a freshness in his work by playing with colour but leaving the image solo. He took things which were 'popular' of the era (early 50's in Britain) and gave them icon status.
Marilyn Monroe is another fine example of his pop work. Repitition plays a large role in his work and seems to develop a theme, making an example of the items we take for granted each and every day.