Janet Jackson Released From Hospital

A representative for Janet Jackson says the singer has been hospitalized after falling ill shortly before a concert.

According to statement released by W&W Public Relations, the singer canceled her concert in Montreal on Monday after she "got suddenly ill" during her sound check and had to be rushed to the hospital just before show time.

The statement says Jackson is being monitored at the hospital and hopes to reschedule the show. No further information was given about Jackson's condition.

A phone call placed to W&W after hours went unanswered, and a representative did not immediately return an e-mail seeking more information.

Jackson has complained of exhaustion, a source close to boyfriend Jermaine Dupri tells PEOPLE. "A 42-year-old body can't handle what a 22-year-old body can," says the source. "I can tell you that she's definitely tired. It was probably exhaustion. She is doing back-to-back, three-hour shows, and her body isn't the same as it used to be."

Janet Jackson has been released from the Royal Victoria Hospital in Montreal, according to a hospital rep.

"Yesterday evening she was checked into the Royal Victoria Hospital and left a couple of hours later," Rebecca Burns, the spokeswoman for the McGill University Health Centre, which operates the hospital, told PEOPLE

Jackson, 42, cancelled her show in Montreal on Monday and was taken to the hospital after she "got suddenly ill" during her sound check, according to a statement from W&W Public Relations.

Further details of the singer's condition were not immediately available, and reps for Jackson did not return requests for additional comment.

Jackson kicked off her Rock Witchu tour promoting her latest album, Discipline, in Vancouver on Sept. 10.