Beyonce has stormed to the top of the U.S. album chart with her new double album I Am... Sasha Fierce.

It is Knowles' third successive number one debut on the Billboard 200 chart. The album sold 482,000 copies in America in its first week on release.

Rockers Nickelback's new release, Dark Horse, debuts at two with sales of 326,000, while American Idol winner's self-titled album comes in at three with an impressive 280,000 sales.

Country star Taylor Swift's Fearless drops from one to four on the new chart and Il Divo's The Promise debuts at five.