Idol Contestant's Health Shakeup

Last night's last-minute shuffle, where the male semifinalists performed in lieu of the women, was because contestant Crystal Bowersox was taken to the hospital Tuesday and unable to perform. Though it's still up in the air whether Bowersox will be well enough to compete in tonight's performance, the show will go on and the women's semifinal will air tonight. No contestant has ever taken a medical leave from the show, and there is speculation that voters can weigh in based on rehearsal footage—or even resort to disqualification. There is no word yet on what is wrong with Bowersox, though according to the Los Angeles Times and Us Weekly, her hospital visit could be linked to her diabetes.