These pixelated pop portraits are made from the tiles of Rubik's cubes by an artist named CIX. The art style is called Rubikubism or Rubikcubism, and according to Cix's site, it's thought to have originated from a French artist called Invader.
Cix can be privately commissioned for a personalized portrait done in Rubikubism style; the portraits above are a part of the 'Icon Divas' collection and are also all for sale.
Implications - Check out portraits of Simon Cowell, Amy Winehouse, Che Guevara, Marilyn Monroe, John Lennon, Angelina Jolie, and even Nelson Mandela. These are a perfect gift for people into pop icon fan memorabilia.