Rihanna’s brand Fenty Beauty introduces its Liquid Killawatt Highlighter available for the first time in liquid form. The superstar appears in a campaign, showing off the shimmering product. Rihanna uses Hu$tla Baby 2.0 (a peachy champagne) for her glamorous look, but it also comes in four additional shades. Sidechick, Vintage Velour, Honey Hawtie, and Butter...