Beyoncé reveals new details about Jay-Z's locs, hair transformation Beyoncé Knowles-Carter gave fans a glimpse into her husband Jay-Z's hair transformation while sharing behind-the-scenes family moments in a new video. The Grammy-winning singer offered a closer look at Jay-Z's hair journey as he, with the help of family members and Beyoncé's Cécred hair care brand, combed out his signature dreadlocks in a video posted June 21 by the hair brand.