Janet Jackson by Tony Barson/WireImage.com
Janet Jackson has been hospitalized after falling ill shortly before her Monday night concert, People reports.

The 42-year-old canceled her Montreal gig after getting "suddenly ill during the sound check" and had to be rushed to the hospital, her rep said.

Jackson, on tour in support of her tenth studio album Discipline, is currently being monitored at the hospital and hopes to reschedule the show.

Earlier this year, the songstress nixed an appearance on Saturday Night Live after being hospitalized for the flu. - Joyce Eng