Ester Renay Dean (born April 15, 1986) is an American songwriter, singer, rapper, and record producer. Her 2009 single "Drop It Low" featured singer Chris Brown. Dean has also co-written songs for many artists including Christina Aguilera, Katy Perry, Keri Hilson, Beyoncé, Priyanka Chopra, Mary J. Blige, Nicki Minaj, Kelly Clarkson, Ciara, The Pussycat Dolls, Usher, Kelly Rowland, Girlicious, Rihanna, R. Kelly, Britney Spears, Keisha Buchanan, Vanessa White, Selena Gomez, Soulja Boy Tell 'Em, Pia Toscano, Tinie Tempah, Lil Wayne, Machine Gun Kelly and Eurovision Song Contest 2012 winner Loreen.
In 2011, Dean contributed to the soundtrack for the animated film, Rio by Blue Sky Studios. In 2012, she voiced two of the characters in the fourth film in the Ice Age franchise, Ice Age: Continental Drift, and also wrote a song for the movie, entitled "We Are (Family)". Dean made her acting debut in the film Pitch Perfect (2012) and performs on the soundtrack as well.