Rihanna's Talk That Talk album has taken the Official Albums Chart No.1 spot on weekly sales of less than 10,000 units.

According to Music Week analysis, it's the first time an album has gone to No.1 on such meagre sales since modern records began - when Millward Brown began supplying data to the Official Charts Company in 1994.

Its sales figure of 9,578 copies smashes the record for the lowest weekly sale for a number one in the 21st ...