DES MOINES, Iowa (AP) – A state auditor’s report shows that when it comes to revenue, all performances at the Iowa State Fair’s Grandstand aren’t equal. The Des Moines Register reports nine of the fair’s 53 acts since 2008 have cost more to bring in than they’ve earned in ticket sales. The study shows Janet Jackson’s 2011 concert appearance was the biggest loser, costing the fair about $107,000.

Last year, three performances didn’t earn enough ticket sales to cover all entertainers’ fees. One of the acts included three “Saturday Night Live” veterans. The fair had to come up with nearly $91,000 to pay the performers. Fair officials are hopeful this year’s Grandstand acts will sell more tickets.

The fair typically attracts about one million visitors during its 11-day run. It starts next month.