Why Do Female Black Celebrities Crave For Lighter Skins? Beyonce, Rihanna (Photos Inside)

 These are before and after photos of some of the most popular African-American celebrities, the common trend among these people is the fact that after few years into fame their skin suddenly turn lighter, although everyone deny bleaching, but as they say, photos speaks a thousand words, why do female BLACK celebrities crave to have lighter skin? are these ideal role model for the next generation?