Jessie J (born Jessica Ellen Cornish) is an English singer-songwriter. She signed a record deal with Island Records and began recording her debut album, Who You Are. She first saw fame when she began writing songs for American singers Chris Brown and Miley Cyrus. The most successful track she co-wrote is “Party in the U.S.A.”, which gained platinum certification in many countries. On 7 January 2011, Jessie J came top of the BBC’s Sound of 2011 list. She followed this in February by receiving Critics’ Choice at the 2011 BRIT Awards.