Black magic works its charm on the charts.

Amy Winehouse was yesterday (Sunday) challenging for two Top 10 chart placings with versions of the same album, as the main beneficiary of the post-Brits sales rush.

The Deluxe Edition of the singer's Island-issued Back To Black - at 15 last week and with cumulative sales of more than 330,000 to date - looked set to move into the top five more than three months after its initial release, while the standard issue was poised to return to the Top 10, almost a year and a half after first hitting the shelves.

In addition, the standard album looks likely to pass 2m UK sales before February is out. It had sold 1,981,000 copies by February 17, with sales of both releases rising sharply after the singer performed twice at last Wednesday's Brit Awards, firstly with Mark Ronson and then with her own band.

"In terms of unit sales, Amy Winehouse has been the number one seller following the Brits," says HMV head of music Rudy Osorio. "We have been selling about 200 copies [of Back To Black] an hour."

"We are expecting Amy Winehouse to get another shot in the arm sales wise," adds Zavvi head of music Rob Campkin. "It has been building since the Grammy Awards [where Winehouse won five categories]."

Sales of the Deluxe Edition are separated from those of the standard album under Official Chart Company rules, as the two releases contain less than 80% identical material. And, while the new edition may have impaired the album's chart fortunes by splitting sales, Campkin says that it has been extremely healthy for the album's overall fortunes.

"People who already have ...