Sinead O’Connor: Through the years

Irish singer Sinead O’Connor performs during the Italian State RAI TV program “Che Tempo che Fa”, in Milan, Italy, Sunday, Oct. 5, 2014.

Musician Sinead O’Connor arrives at amfAR’s Inspiration Gala in Los Angeles, Thursday, Oct. 27, 2011. The Gala benefits AIDs research worldwide.

Ireland’s Sinead O’Connor tunes her before she performs songs from her “Theology” double CD at New York’s Sirius Satellite Radio studios in New York, Monday June 25, 2007.

Ireland’s Sinead O’Connor performs songs from her “Theology” double CD at New York’s Sirius Satellite Radio studios in New York, Monday June 25, 2007.

Sinead O’Connor performs at City Winery in Chicago on Monday, November 4, 2013.

Sinead O’Connor performs at City Winery in Chicago on Monday, November 4, 2013.

Irish Singer Sinead O’Connor accompanies Peter Gabriel (unseen) on stage at the World of Music, Arts, and Dance (WOMAD) in San Francisco’s Golden Gate Park, United States on September 21, 1993.

Sinead O’Connor performs songs from her “Theology” double CD at New York’s Sirius Satellite Radio studios in New York on June 25, 2007.

Singer Sinead O’Connor performs at Downing Stadium on Randall’s Island in New York, Saturday, June 14, 1997, as part of the Guinness Irish Music Festival.

Sinead O’Connor performs during the first day of the two-day Guinness Fleadh Irish music and cultural festival at New York’s Randall’s Island on Saturday, June 13, 1998.

Kris Kristofferson comforts Sinead O’Connor after she was booed off stage during the Bob Dylan anniversary concert at New York Madison Square Garden, Oct. 17, 1992.

Irish Singer Sinead O’Connor performs at the East Coast Blues and Roots Festival in Byron Bay, Australia, Thursday, March 21, 2008.

Irish pop singer Sinead O’Connor, center, chats with Sly Dunbar, right, and Robbie Shakespeare during the launch of her album “Throw Down Your Arms”, Monday, Aug. 8, 2005 in Kingston, Jamaica.

Irish singer Sinead O’Connor performs at the Prime Minister Independence Gala in Kingston, Jamaica Saturday Aug. 6, 2005.

Singer Sinead O’Connor performs at the 5th Annual Jammy Awards in New York on Tuesday, April 26, 2005.

Burning Spear and Sinead O’Connor perform together at the 5th Annual Jammy Awards in New York on Tuesday, April 26, 2005.

Musicians Sinead O’Connor, left, and Deborah Harry pose together at amfAR’s Inspiration Gala in Los Angeles, Thursday, Oct. 27, 2011.

Musicians Sinead O’Connor, left, and Deborah Harry pose together at amfAR’s Inspiration Gala in Los Angeles, Thursday, Oct. 27, 2011.

Irish singer Sinead O’Connor performs during the official cermony for inaugurating the Bibliotheca Alexandrina, Egypt’s ambitious $250 million project, in Alexandria Egypt Wednesday, Oct. 16, 2002.

Dublin-born singer Sinead O’Connor on Sept. 2, 1993.

Singer Sinead O’Connor poses in New York, June 5, 2000.

Sinead O’Connor performs at an outdoor plaza at 59th St. and Fifth Avenue in New York Monday, June 12, 2000, for a taping of the CBS “Early Show.”