Sinead O'Connor announced last week that she has converted to Islam as it is "the natural conclusion of any intelligent theologian's journey."
The 51-year-old singer, who has changed her name to Shuhada Davitt, made the revelation in a post to Twitter.
"This is to announce that I am proud to have become a Muslim," she tweeted, adding that "all scripture study leads to Islam."
This, she said, "makes all other scriptures redundant."
She also posted a video on YouTube of herself singing an Islamic call to prayer as well as a photo of herself wearing a hijab on Twitter, captioning it as "happy."
She has since updated her Twitter profile pic to a meme of a Nike tick and the phrase "Wear a hijab. Just Do It."
In 1999, O'Connor was ordained by Bishop Michael Cox, the leader of the dissident Catholic Latin Tridentine Church in Lourdes, Ireland, but later stepped back from her role, Billboard noted.
She has since criticized the Catholic church, citing child abuse as the reason she was distancing herself from it.
"I'm so bored by it that I don't get involved," she told Billboard in 2014, adding that she was no longer interested in causing more trouble. "And neither am I interested in making a circus of the sacraments."
Earlier this year she announced her plans to leave the Roman Catholic church and asked Pope Francis to excommunicate her.
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