Pop star, Rihanna, turned heads when she arrived at the 2015 Met Gala in a stunning canary yellow robe, which featured a train so long that she required the help of three wranglers to carry it when she walked. According to the pop superstar, the extravagant outfit, which was created by Chinese designer Guo Pei, took two years to make. Your thoughts on Rihanna's gown. Was it in keeping with the theme of the evening?