Irish singer Sinead O'Connor has 10 solo albums and is particularly well known for her worldwide success with "Nothing Compares 2 U" in 1990, written by Prince. The gifted but troubled singer-songwriter is known as much for her fierce and expressive voice as her shaved head and blunt criticism of the Catholic Church and other institutions.
Here, Sinead O'Connor attends amfAR's Inspiration Gala on Oct. 27, 2011, in Los Angeles.
Arsenio Hall, Sinead O'Connor
Comedian Arsenio Hall is shown in Los Angeles, California, October 19, 2015 and Irish recording artist Sinead O'Connor is shown in New York, December 14, 2011 in this combination photo.
Hall filed a $5 million defamation lawsuit against O'Connor after she accused him of supplying drugs to music legend Prince, whose death on April 21, 2016 has prompted speculation about an overdose.
O'Connor achieved major success worldwide performing Prince's song "Nothing Compares 2 U".
On CBSNews.com: Songs you didn't know Prince Wrote
Irish singer Sinead O'Connor performs on stage during the Carthage Jazz Festival in Tunis April 4, 2013.
Her rendition of "Nothing Compares 2 U" topped charts from Europe to Australia, and earned O'Connor multiple Grammy Award nominations. In 1991, O'Connor was named Artist of the Year by Rolling Stone.
Sinead O'ConnorIrish singer Sinead O'Connor performs on stage during a dress rehearsal for "Seven Songs to Leave Behind," a Melbourne International Arts Festival finale concert, at Sidney Myer Music Bowl on Oct. 22, 2010, in Melbourne, Australia.
Irish singer Sinead O'Connor performs on stage during the Positivus music festival in Salacgriva, July 18, 2009.
Sinead O'ConnorSinead O'Connor performs on stage during the 5th annual West Coast Blues & Roots Music Festival in Esplanade Park, March 15, 2008, in Perth, Australia.
Sinead O'Connor performs during the Leverkusen Jazz Days Festival on Nov. 9, 2007, in Leverkusen, Germany.
O'Connor, who was diagnosed with bipolar disorder more than a decade ago, has spoken of her mental health problems. She told Oprah Winfrey in 2007 that before her diagnosis she had struggled with thoughts of suicide and overwhelming fear. She said at the time that medication had helped her find more balance, but "it's a work in progress."
On CBSNews.com: Famous people with Bipolar Disorder
Sinead O'ConnorSinead O'Connor makes an appearance at Borders to promote her CD release of "Theology" on June 26, 2007, in New York.
Sinead O'ConnorSinead O'Connor attends the 2007 Irish Film & Television Awards on Feb. 9, 2007, in Dublin, Ireland.
Sinead O'ConnorSinead O'Connor performs during the 5th Annual Jammy Awards on April 26, 2005, in New York.
Sinead O'ConnorSinead O'Connor arrives at The 2005 MOJO Honours List at Porchester Hall on June 16, 2005, in London.
Sinead O'ConnorSinead O'Connor, center, takes time out from her recording session for a photo with bass player Robbie Shakespeare, left, and producer Sly Dunbar, March 29, 2005, in Kingston, Jamaica.
Sinead O'ConnorSinead O'Connor performs at the Lisdoonvarna Music Festival on Aug, 30, 2003, in Dublin, Ireland.
Sinead O'ConnorSinead O'Connor attends the Irish Meteor Awards after party at Renards nightclub on March 3, 2003, in Dublin, Ireland.
Sinead O'ConnorIrish singers Sinead O'Connor and Stephen Gately attend "Grand Concert" after party on Feb. 5, 2003, in London.
Singer Sinead O'Conner performs at the gala inaguration ceremony of the Bibliotheca Alexandrina October 16, 2002 in Alexandria, Virginia.
Dignitaries from around the world gathered to celebrate the new facility, a modern version of the famous ancient library that burned down in the fourth century.
Sinead O'Connor performs in New York on June 12, 2000.
Sinead O'Connor performs at the 1990 MTV Music Video Awards on Sept. 6, 1990, in Los Angeles.
In 1991, O'Connor was named Artist of the Year by Rolling Stone.