In the world of hair, Kim Kimble reigns supreme. She's beautified the locks of an impressive who's who of A-list stars, including Lady Gaga, Shakira, Mary J. Blige, Rihanna, Britney Spears, Iggy Azalea, and Beyoncé. Starting as a shampoo girl for her mother's salon, the Los Angeles native's over two-decade-long career has been filled with milestones. Kim ros