ESTER DEAN, is an American singer, songwriter, record producer, and actress. Her 2009 single "Drop It Low" featured singer Chris Brown. Dean has also co-written songs for many artists including Christina Aguilera, Katy Perry, Beyoncé, Mary J. Blige, Nicki Minaj, Kelly Clarkson, Ciara, The Pussycat Dolls, Usher, Kelly Rowland, Rihanna, Britney Spears , Selena Gomez, Lil Wayne, Machine Gun Kelly 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) as Cynthia-Rose Adams, a role she reprised for the sequel, Pitch Perfect 2 and 3