Ester Renay Dean (born December 15, 1987) is an American singer and songwriter, and record producer signed to Roc Nation. She is most notable for her dual appearance on Rio: Music From The Motion Picture and her 2009 US hit single "Drop It Low", which features Chris Brown.
Dean has also written songs with many artists including Nicki Minaj, Katy Perry, Beyoncé, Mary J. Blige, Christina Aguilera, Kelly Clarkson, Ciara, Nicole Scherzinger, Usher, Kelly Rowland, Girlicious, Rihanna, R. Kelly, Britney Spears, Soulja Boy Tell 'Em, Pia Toscano, Tinie Tempah, Lil Wayne, Machine Gun Kelly, and Shakira.

Work with Katy Perry

She worked with Katy Perry on the following songs:

Songs from Teenage Dream (2010):