Britney Spears' 'Circus' sells half a million in first week

Britney Spears' new album 'Circus' debuted at Number One in the US this week, after selling 505,000 copies in its first week of release.

The figures make Spears the only artist in the history of Nielsen SoundScan to have four albums sell 500,000 copies or more in their first week, reports Reuters.

In addition to reaching Number One in the US, the record entered at the top of the charts in Brazil, Canada, Japan, Mexico and Switzerland.

Meanwhile, 12 dates have been added to Spears' North American tour, kicking off on March 3 in New Orleans, Louisiana.

The updated tour itinerary is:

New Orleans, LA New Orleans Arena (March 3)
Atlanta, GA Philips Arena (5)
Miami, FL American Airlines Arena (7)
Tampa, FL St. Pete Times Forum (8.)
Uniondale, NY Nassau Coliseum (11)
Newark, NJ Prudential Center (13, 14)
Boston, MA TD Banknorth Garden (16)
Toronto, Ontario Air Canada Centre (18, 19)
Montreal, Quebec Bell Centre (20)
Uniondale, NY Nassau Veterans Memorial Coliseum (23)
Washington, DC Verizon Center (24)
Uncasville, CT Mohegan Sun Arena (26)
Pittsburgh, PA Mellon Arena (27)
Houston, TX Toyota Center (30)
Dallas, TX American Airlines Center (31)
Kansas City, MO Sprint Center (April 2)
Minneapolis, MN Target Center (3)
Edmonton, Alberta Rexall Place (6)
Vancouver, British Columbia General Motors Place (8.)
Tacoma, WA Tacoma Dome (9)
Sacramento, CA ARCO Arena (11)
San Jose, CA HP Pavilion (12)
Salt Lake City, UT EnergySolutions Arena (14)
Los Angeles, CA Staples Center (16, 17)
Anaheim, CA Honda Center (19, 20)
Glendale, AZ Jobing.com Arena (24)
Las Vegas, NV MGM Grand Garden Arena (25)
Rosemont, IL Allstate Arena (28, 29)


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