Added pictures from Britney Spears “Circus Tour” shows in Tulsa, Oklahoma and Houston, Texas on September 15 and 16. Click the thumbnails below to open full set of pictures at the gallery.

The Circus Tour in Tulsa, Oklahoma – September 15, 2009 x21

The Circus Tour in Houston, Texas – September 16, 2009 x18

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• Britney Spears Circus Tour Billboard Boxscore Grossing Data from 2nd. North American Leg!
• Britney Spears Circus Tour returns to North America – Buy Your Tickets!
• Britney Spears hits Houston in a black wig – March 30
• First Picture of Perez Hilton on set for ‘Circus’ Tour Video