Jessica Ellen Cornish (born 27 March 1988), better known by her stage name Jessie J, is an English singer and songwriter. Born and raised in London, she began her career on stage, aged 11, with a role in the West End musical Whistle Down the Wind. She studied at the BRIT School before signing with Gut Records and striking a songwriting deal with Sony/ATV Music Publishing where she wrote for artists including Chris Brown and Miley Cyrus.