Lindsay Lohan was photographed carrying a copy of the Koran after her first day of community service in Brooklyn, New York, on Wednesday.
The actress - who is of Irish and Italian heritage and was raised as a Catholic - held a hard copy of the Muslim holy book in her arm as she finished a day of office work at a children's center. She reportedly arrived two hours late.
It comes as the 28-year-old embarks on an 'emotional detox', giving up alcohol and dating.
The Koran prescribes a lifestyle free of alcohol for Muslims - though readers of the book do not necessarily subscribe to the religion.
It is not the first time Lindsay has shown an interest in other religions.
During the height of her fame as a teen star, she wore a Kabbalah red string bracelet, which wards off misfortune brought about by the 'evil eye'.
She was also rumored to be attending Kabbalah classes, and in 2012 she reportedly joined Courtney Love's Buddhist chanting group.
Last year Lindsay described herself as a 'very spiritual person' in a docu-series with Oprah Winfrey.
'I'm a very spiritual person and I've become more spiritual as time has gone on,' she told the talk show host.
'I'm really in touch, whether it's prayer or meditation... there are so many powers greater than me in the world. I've been blessed and lucky enough to have been given a gift to share with other people.'
During the height of her fame as a teen star, Lindsay was often pictured wearing a Kabbalah red string bracelet, which is said to ward off misfortune brought about by the 'evil eye'.
In 2012, Courtney Love claimed to Access Hollywood Live that Lindsay had joined her Buddhist chanting group, and was coming round her house with seven other women to chant.
'It's good for her,' Courtney said at the time.
Lindsay was in Brooklyn to start her court-ordered community service at the Duffield Children's Center in the Fort Greene neighborhood, where she worked in April 2014 while filming a docu-series with Oprah.
She snuck in the back door of the community center Wednesday morning to avoid the reporters and fans who'd gathered to catch a glimpse of the troubled star.
Ivonne Lopez, the center’s early-childhood education director, emerged to confirm to the media Lindsay was inside the building.
She said she didn't know the exact time that the troubled starlet showed up but said it was 'early.'
'Currently she's doing administrative work and at some point she'll have an opportunity to engage with the children,' said Lopez.