The singer is currently leading the midweek chart with her latest cut 'Domino', pushing Flo Rida's 'Good Feeling' down to two.
Rizzle Kicks are at three with 'Mama Do The Hump', Avicii is at four with 'Levels' and Lloyd rounds off the top five with 'Dedication To My Ex'.
Maroon 5's 'Moves Like Jagger' slides up to ten, while Lana Del Rey's 'Video Games' vaults up 13 places to 13 after her performance on The Jonathan Ross Show.
David Guetta's 'Titanium' - a collaboration with Sia - re-enters the chart at number 25, and Michael Kiwanuka's 'Home Again' moves up ten places to 27 after his BBC Sound of 2012 win.
Further down the chart, Pitbull's 'International Love' lands at 33, Pixie Lott's 'Kiss The Stars' is at 34 and Kelly Clarkson's 'Stronger (What Doesn't Kill You)' is at 37.
Over on the album chart, The Maccabees are currently lined up to claim their first number one record with Given To The Wild.
> View the current singles top 100 here
Watch the music video for Jessie J's 'Domino' below: