The retro fashion trend is making huge waves this summer in the natural hair scene. With celebrities like Katy Perry, Janelle Monáe and Solange Knowles rocking their natural tresses on the biggest red carpets of the year, naturalistas have taken protective styles to another level with classy yet sexy updos. Are you into the pinup girl look? Take a look at some of our favorite retro natural updos in the gallery below.