Sinead O'Connor details abuse by her mother on 'Dr. Phil': 'She ran a torture chamber'

A bombshell interview between Dr. Phil and Sinead O'Connor is shedding light on the singer's lifelong battles with depression, suicide attempts and other severe mental issues that led to her online breakdown earlier this year.

Many of O'Connor's deep-rooted troubles stem from her mother, who died in a car crash when O'Connor was 19.

"You say she abused you physically and sexually," Dr. Phil begins.

"She ran a torture chamber," O'Connor says. "She was a person who took delight in hurting you."

In a gut-wrenching teaser for the upcoming interview, Dr. Phil addresses several questions that seemingly elicit surprising answers, including why she keeps her hair short and what was really behind her decision to famously tear up a photo of the Pope on "Saturday Night Live."

O'Connor, Dr. Phil points out, tried to commit suicide eight times in one year. "Do you want to be dead?" he asks.

You can watch the full teaser in the video above. The interview airs Tuesday, September 12.

17 PHOTOS
Sinead O’Connor: Then and Now
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Sinead O’Connor: Then and Now
Irish singer Sinead O'Connor performs during her concert at the Paleo Festival in Nyon, late July 23. The festival lasts until July 27. pmv/Photo byPierre Virot. PALEO FESTIVAL
Glastonbury Festival, Britain - 1995, Sinead O'Connor (Photo by Brian Rasic/Getty Images)
UNITED KINGDOM - JANUARY 01: WHITE ROOM Photo of Sinead O'CONNOR (Photo by Patrick Ford/Redferns)
FILE PHOTO TAKEN 27JUNE98 - Irish pop star Sinead O'Connor, seen here in a file photo taken at the Lilith Fair Concert series June 27, 1998, reveals she is a lesbian in a magazine interview to be published later this month. O'Connor, 33, comes out of the closet in the cover story of the July-August issue of Curve, the nation's biggest-selling lesbian magazine. RCS
Singer Sinead O'Connor attends an interview with Reuters in Paris May 21, 2007. Picture taken May 21, 2007. To match feature ENTERTAINMENT-MUSIC/OCONNOR REUTERS/Jacky Naegelen (FRANCE)
Irish singer and songwriter Sinead O'Connor poses at the amfAR?s Inspiration LA Gala in Hollywood, California October 27, 2011. The gala will benefit the foundation?s AIDS research programs. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT PORTRAIT)
Singer Sinead O'Connor attends the Giorgio Armani and the Cinema Society screening of the film "Albert Nobbs" at the Museum of Modern Art in New York December 13, 2011. REUTERS/Eduardo Munoz (UNITED STATES - Tags: ENTERTAINMENT SOCIETY)
MOSCOW, RUSSIA - SEPTEMBER 13: Sinead O'Connor performs on stage at Green Theatre at VDNH on September 13, 2014 in Moscow, Russia. (Photo by Anatoly Zhdanov/Kommersant Photo via Getty Images)
File photo dated 9/2/2012 of singer Sinead O'Connor has dismissed reports suggesting she was missing and had threatened to jump off a bridge.
Sinead O'Connor performs live on stage on day 3 of Camp Bestival 2014, Lulworth Castle - Dorset
Irish Pop and Rock musician Sinead O'Connor (left) and American Blues musician Buddy Guy perform onstage together at Buddy Guy's Legends nightclub, Chicago, Illinois, January 22, 2016. (Photo by Paul Natkin/Getty Images)
LONDON, ENGLAND - APRIL 13: Sinead O'Connor performs on stage at Barbican Centre on April 13, 2015 in London, United Kingdom (Photo by Rob Ball/Redferns via Getty Images)
SYDNEY, AUSTRALIA - MARCH 19: Sinead O'Connor performs live for fans at Sydney Opera House on March 19, 2015 in Sydney, Australia. (Photo by Don Arnold/WireImage)
Irish singer-songwriter Sinead O'Connor performs on stage at Melkweg, Amsterdam, Netherlands, 28th September 2014. (Photo by Paul Bergen/Redferns)
LONDON, UNITED KINGDOM - AUGUST 12: Sinead O'Connor performs on stage at The Roundhouse on August 12, 2014 in London, United Kingdom. (Photo by Christie Goodwin/Redferns via Getty Images)
Irish singer and songwriter Sinead O'Connor, circa 1995. (Photo by Terry O'Neill/Hulton Archive/Getty Images)
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