Amber Patrice Riley (born February 15, 1986) is an American actress, singer and author. She is best known for her portrayal of Mercedes Jones on the Fox comedy-drama series Glee (2009–2015). For her performance on the series, she won a Screen Actors Guild Award, and has been nominated for three Teen Choice Awards, three NAACP Image Awards, and a Grammy Award. In November 2016, Riley led the West End debut of Dreamgirls, playing the lead role of Effie White. She won the Laurence Olivier Award for Best Actress in a Musical in 2017 for her role in Dreamgirls.Riley won season 17 of Dancing with the Stars in 2013.