1. Jessie J feat. Ariana Grande & Nicki Minaj - 'Bang Bang' This image appears in the gallery:This Week's Top Ten 10. 1. Jessie J feat. Ariana Grande & Nicki Minaj - 'Bang Bang' Brand new entry 'Bang Bang' has soared straight to the Number 1 spot with this all star collaboration! 10 images See the full gallery: This Week's Top Ten