( CM ) - Estelle's American Boy has remained at number one in the UK singles chart for a fourth week in a row.
Sam Sparrow's single Black and Low climbed two places in this week chart to number two.
Flo Rida's Low charted at number three and Madonna's Four minutes, featuring Justin Timberlake, came it at number four.
Mariah Carey's Touch My Body made up the top five UK singles.
In the album chart, Duffy's record Rockferry returned to the top of the chart, displacing REM's Accelerate which fell to three.
The soundtrack to the Rolling Stones' documentary Shine a Light, directed by Martin Scorsese, entered at two in this week's chart.
Manchester band The Courteeners saw their debut album St Jude chart at number on its first week of release.
Leona Lewis's album Spirit made up the top five albums.