Sinead O’Connor Cancels Tour, Says She Is ‘Unwell’

First Published: April 23, 2012 5:33 PM EDT Credit: FilmMagic

NEW YORK, N.Y. -- Caption Sinead O’Connor steps out at the Giorgio Armani & The Cinema Society screening of ‘Albert Nobbs’ at the Museum of Modern Art in New York City on December 13, 2011 Sinead O’Connor says she is canceling her 2012 tour due to her bipolar disorder.

The singer made the announcement Monday in a posting on her website. She wrote that she is “very unwell” and had been advised by her doctor to not hit the road after her “very serious breakdown between December and March.”

In December, O’Connor announced her split from therapist Barry Herridge after 16 days of marriage.

The Irish singer-songwriter is best known for the early 1990s hit “Nothing Compares 2 U.”

Her latest album — “How About I Be Me (And You Be You)?” — was released in February. The 45-year-old says she had planned the tour because of the album’s release, but was “attempting to be stronger than I actually am.”

Copyright 2013 by The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.