After recently posting a cry for help in a Facebook video, Sinéad O’Connor reveals to Dr. Phil her years-long struggles with her mental health, and she says she wants to inspire others to reach out for help.

“There’s a certain group of people who are absolutely afraid to open their mouth about mental illness, and that is rockers,” O’Connor tells Dr. Phil in an exclusive interview airing Tuesday. “I’m hoping we can save some lives.”

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O’Connor shot to fame at the age of 23 with her haunting rendition of Prince’s song “Nothing Compares 2 U.” The Irish singer also became notorious for her actions, specifically when she tore up a photo of Pope John Paul II on Saturday Night Live in 1992. When O’Connor posted her Facebook plea, she says she was living in motel in New Jersey, alone, with no one to turn to for help.

WATCH: Sinead O’Connor Claims She Was Beaten Daily By Mom: ‘She Ran A Torture Chamber’ 

“You are a very important teaching tool because you are absolutely inspirational to millions of others who are struggling with what you’re struggling with,” Dr. Phil tells her. “And for you to have the courage to candidly and openly talk about this, gives others the courage to come forward and seek the help they need.”

On Tuesday's episode, hear about O’Connor’s childhood, why she says she wears her hair short and why she says she felt like a “impostor” when she had the number one song in the world. Check here to see where you can watch.

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Sinead O’Connor Describes Event She Says Made Her Suicidal: 'I Lost My Mind'