Rita Ora is on course to claim her third UK number one single.
The singer's latest track 'How We Do (Party)' has topped the midweek chart update, while Wiley's 'Heatwave' falls to two.
Emeli Sandé's 'Read All About It, Pt III' storms up to number three following her performance at the London 2012 Olympics Closing Ceremony on Sunday (August 12).
The celebration of British music to mark the end of the Games has also caused Elbow's 'One Day Like This' to zoom up from 125 to four and Kate Bush's 'Running Up That Hill' to re-enter at number five.
George Michael's new single 'White Light' lands at number eight, while Trey Songz could claim his highest ever charting song with 'Simply Amazing' which is at number 10.
John Lennon's 'Imagine' is at 12, Muse's 'Survival' is at 18, One Direction's 'What Makes You Beautiful' is at 25 and Oasis's 'Wonderwall' is at 28.
Towards the bottom of the chart Aiden Grimshaw sits at 37 with 'Curtain Call' and The Who re-enter at 40 with their 1972 track 'Baba O'Riley'.
Over on the album chart, Emeli Sandé's Our Version of Events returns to number one after her Closing Ceremony appearance.
If the collection continues to sell high it will overtake Adele's 21 as the best-selling album of 2012 so far. It's currently 39,000 copies behind.
Elsewhere, Paloma Faith is at two with Fall to Grace, Spector land at number three with their debut Enjoy It While It Lasts.
Ed Sheeran's at four with + and Elbow climb 134 places to number five with The Seldom Seen Kid.
Ryan O'Shaughnessy's self titled EP is at six, while The Kinks' Greatest Hits is at 25 and Yellow Card sit at 38 with their new collection Southern Air. (source)