Rimmel hosted their 180 Years Of Cool anniversary party in London on Thursday and Rita Ora stood out in her on trend red tartan trouser suit. Stewart Royal tartan in case you wondered. Rita's friend Cara Delevingne has always been a fan of tartan and Rita was first seen in a pair of Cara's tartan trousers with the distinctive black satin stripe running up either side but now she has the full ensemble. And doesn't she look good in it! Complete the look with embroidery in gold thread to match your ear-rings and the cutest Stewart Royal bow tie.