The 27-year-old actress went bold in a black and gray sheer dress with a bright red lip for the awards show.
While walking the red carpet, Riley was joined by Amy Seimetz, who was one of the two directors on The Girlfriend Experience. Amy also co-wrote all the episodes and is working on season two!
Riley was nominated for a Golden Globe for her performance on The Girlfriend Experience.
FYI: Riley is wearing a Chanel dress and Jimmy Choo shoes.