Rihanna has retained the number one spot in the UK singles chart while Usher debuted at number one with his brand new album Here I Stand, the CM reported.
The Barbadian singer remains atop the singles chart for the second week running with her new single Take A Bow, with Manchester duo the Ting Tings in second.
Duffy climbs from seventh to third with Warwick Avenue - her album Rockferry remains at number two - and falls one place to fourth.
In the album chart, Usher followed the single success of Love In This Club by taking the number one spot after the first week on release of Here I Stand.
Neil Diamond claims two positions in the albums top ten, with new effort Home Before Dark and a greatest hits collection, while the Pigeon Detectives claim the second highest new entry of the week after Emergency grabs fifth.