It's Kylie Jenner vs Rihanna in a battle of the makeup brands. Kylie Cosmetics reportedly generated a whopping $420 million in sales within its first 18 months. But when Rihanna's Fenty Beauty line launched in September, with 40 shades of foundation, consumers applauded Ri-Ri's efforts at diversity.

Now, Jenner is launching 30 shades of foundation, and some fans are calling her out for copying. Allison Collins, Beauty Financial Editor at Women's Wear Daily, joins us to discuss.

Collins breaks down the main differences between the two brands' marketing plans. She also explains how more diversity in the industry--no matter where it comes from--is always good for the consumer.