Adele's 21 spends its fifth straight week atop the album chart, selling a further 173,718 copies to lift its 41-day tally to 840,457, while her 2008 debut, 19, jumps 4-2 (45,190 sales).

She becomes only the 10th act ever to have the top two albums in the same week and the first since March 1999, when The Corrs were number one with Talk On Corners and number two with Forgiven, Not Forgotten.

Prior to that, the feat was performed by ...