American Idol's ten remaining ninth-season male semifinalists will be performing one day earlier this expected this week.

Fox has announced the season's live second-round female semifinals performance show will be delayed until Wednesday night due to undisclosed medical issues that would prevent Crystal Bowersox from performing on tonight's broadcast as previously scheduled.

The ten remaining male semifinalists -- who were originally scheduled to perform on Wednesday night's live American Idol broadcast -- will now perform in the women's place. 

Fox's did not release any additional details about the decision, including when the ten male semifinalists -- Lee Dewyze, Andrew Garcia, Todrick Hall, Casey James, Aaron Kelly, Alex Lambert, Michael Lynche, John Park, Jermaine Sellers, and Timothy "Tim" Urban -- were notified of the change.

Bowersox, a 24-year-old musician and mother from Elliston, OH, had performed Alanis Morissette's "Hand In My Pocket" to generally positive judges' feedback during last week's initial semifinals round.

"I really, really like you and I think you're refreshing.  You're going to do well," Simon Cowell said.

"You're one of my favorites... I love your originality as an artist," Randy Jackson said.

"I think you have greatness in you," Kara DioGuardi added.

American Idol's schedule will return to its previously announced format next week, according to Fox, and feature the season's eight remaining female semifinalists performing live on Tuesday and the eight remaining male semifinalists singing live on Wednesday.
About The Author: Steven Rogers
Steven Rogers is a senior entertainment reporter for Reality TV World and been covering the reality TV genre for two decades.