Esther Renay Dean (born April 15, 1986) is an American singer, songwriter, music producer and actress. Dean has also written songs for many artists, with numerous Top 10 hits, including No. 1 hits for Rihanna and Katy Perry, earning the name "The Song Factory". At the 54th Annual Grammy Awards, Dean was nominated for Album of the Year as a producer on Rihanna's album Loud. Outside of music, 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, titled "We Are (Family)". Dean made her acting debut in the film Pitch Perfect (2012) as Cynthia-Rose Adams, a role she reprised for the sequels, Pitch Perfect 2 (2015) and Pitch Perfect 3 (2017).