How Pharell avoids the usual pitfalls of celebrity product launches

US singer, songwriter, rapper and fashion designer Pharrell Williams added another string to his bow last week when he launched his own skincare line, Humanrace. After going live on Thursday, November 26, when the US was celebrating Thanksgiving,  every product on the site has since sold out. William’s range was teased in Vogue three days ahead of the launch, when the star shared a video of his morning skincare routine with the publication. On his Instagram page alone, the video has racke