Soon as it was announced that Rihanna was MAC’s new spokesperson for their wildly popular Viva Glam campaign for 2014, many criticized the Canadian brand’s lack of ingenuity. 2013 was Rihanna’s bitch, to paraphrase a line from her infamous song “Birthday Cake.” And now, her next target is 2014’s MAC Viva Glam campaign. And I’m here for it! Both MAC Viva Glam Rihanna Lipstick and Lipglass are described as a “blue-red with frost finishes.” Normally, I shy away from lip products with frost finishes, but I hear that this particular one is ultra-flattering on a multitude of skin tones. I do not own her coveted lippie for a cause yet,…