Since its release at the end of February her Island/Lava debut Who You Are had sold around 530,000 copies in the UK by last Sunday, according to the Official Charts Company. This total dwarfs the collective album sales of the 11 other acts on the 15-strong list who have already had an album out.

The nearest act to Jessie J's total are Columbia signings The Vaccines - third on the BBC poll, which is selected by music critics and tastemakers ...