Here's Rihanna in the Visually Stunning 'Valerian and the City of a Thousand Planets' TrailerHere's Rihanna in the Visually Stunning 'Valerian and the City of a Thousand Planets' TrailerRihanna makes a brief cameo in the visually breathtaking trailer for 'Valerian,' which also stars Cara Delevigne and Clive Owens.Bradley SternBradley Stern