The star looked stunning as she addressed the crowd in a floor-length navy blue design. We imagine that after she'd spotted Dawson in that dazzling gold number, Mirren decided that she didn't want to be left out of the glitter game. She added her own version of Christmas sparkle by pairing her dress with a sequin embellished bolero. Not quite enough to out do her co-host's look, but a chic, stylish and easier-on-the-eyes choice all the same.
How do you rate Helen's latest look? Let us know and take a look below to see her style evolution.