Britney Spears will face lots of empty seats when her eagerly-awaited “Circus” Concert Tour rolls into the Big Top this Thursday.

“Group sales are down considerably,” a production source blabbed to MSNBC on Sunday, “and then you’ve got individual tickets that cost as much as $500 apiece. That’s a lot of money to spend on an artist who isn’t a sure bet right now.”

The Circus Starring Britney Spears opens in New Orleans on March 3.