The singer is currently leading the midweek chart with his current cut 'Dance With Me Tonight', pushing Rihanna's 'We Found Love' down to second place.
Flo Rida has also slipped a place down to three with 'Good Feeling', while Kelly Rowland has entered at number four with her new single 'Down For Whatever'.
Avicii rounds off the top five with 'Levels', while Rebecca Ferguson has landed at eight with her debut single 'Nothing's Real But Love'.
One Direction have crashed out of the top ten with 'Gotta Be You' tumbling nine places to 12, while Lady GaGa advances a few places to 15 with 'Marry The Night'.
JLS's 'Take A Chance On Me' falls to 21, Cher Lloyd's 'With Ur Love' slides to 26 and Jessie J's 'Who You Are' sits at 29.
Rihanna's Jay-Z collaboration 'Talk That Talk' enters the chart at 34 despite not receiving an official single release.
Over on the album chart, Rihanna has bolted to the top spot with her sixth studio opus Talk That Talk.
One Direction trail with their debut LP Up All Night at two and Westlife complete the top three with their Greatest Hits compilation.
Michael Buble has been forced down to four with Christmas, while Kate Bush's 50 Words For Snow debuts at five.
> View the current singles top 100 here
Watch the music video for Olly Murs's 'Dance With Me Tonight' below: