Amy Winehouse continues to rack up posthumous album sales around the world, including in the US, where 'Back to Black' moves up to No. 4 on the new Billboard 200 album chart.

The album had re-entered last week's chart at No. 9, with sales of 37,000 units in just the first two days after her death. This week, with a full seven days for the public to purchase her music, 'Back to Black' moved 54,000 copies to jump up to No. 4. In her home country, the late British diva's album reigns at No. 1.

Winehouse's debut, 'Frank,' surges to No. 33 in America, while her singles 'Rehab,' 'You Know I'm No Good' and 'Back to Black' all appear on the Digital Songs chart, with 'Rehab' coming in the highest at No. 20.

Winehouse's album trails country singer Eric Church, who takes the No. 1 spot this week ahead of Adele and Kelly Rowland, who debuts at No. 3. The week's other high debut comes from soulful singer Joss Stone, who takes No. 9 with her latest effort.

Watch the Amy Winehouse 'Rehab' Video