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Sinead O'Connor cancels tour, says she is "unwell" due to bipolar disorder

NEW YORK, NY - FEBRUARY 23: Musician Sinead O'Connor performs at the Highline Ballroom on February 23, 2012 in New York City. (Photo by Jason Kempin/Getty Images)
Jason Kempin
Sinead O'Connor performs at the Highline Ballroom on February 23, 2012, in New York.
Getty

(CBS News) Sinead O'Connor won't be going out on the road this year after all.

"With enormous regret I must announce that I have to cancel all touring for the year as am very unwell due to bi polar disorder," she revealed in an online message.

Pictures: Sinead O'Connor
Read more: Sinead O'Connor splits from husband after 16 days

Doctors advised O'Connor not to tour after she experienced a "very serious breakdown between December and March," O'Connor explained.

The Irish singer added, "So very stupidly I ignored his advice to my great detriment, attempting to be stronger than I actually am."

The 45-year-old vocalist played a few shows earlier this year and was supposed to hit the road again this spring behind her new album, "How About I Be Me (And You Be You)?."

In December, O'Connor announced her split from therapist Barry Herridge after 16 days of marriage. They tried to reconcile, but eventually called it quits in January 2012.