Jessica Ellen Cornish, better known by her stage name Jessie J, is an English singer-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.
Decade by decade, sort and rank (probably) by decade OF ONLY THEIR FIRST ALBUM DEBUT (e.g. Madonna had her first album in 1983 so she goes into 1980s category)
