The X Factor judge and N-Dubz star also tipped Kristen Stewart for the part of Anastasia Steele in the upcoming film adaptation.
Speaking to Marie Claire, the singer said that she finds the success of the erotic book series liberating, arguing: "'Fifty Shades is every woman's secret fantasy but they're embarrassed to talk about it.
"Every female secretly wants to be dominated but they don't say it. I just like that someone has said it and women are being open about it now."
She continued: "Fifty Shades of Grey isn't that shocking for me because I've always said [what I want in bed]... I like to be dominated and said to boyfriends, 'Hey, this is what I like'.''
She went on to back Stewart, star of Twilight and On the Road, to star as Steele, explaining: "Kristen Stewart would be good for the female role, she has that awkwardness about her that the book portrays. I think she'd do it quite well.
"And as for who would play Christian, it has to be Tom Hardy."
Hardy is just one of a number of names to be linked to the role of Christian Grey, alongside the likes of Ian Somerhalder, Ryan Gosling, Jake Gyllenhaal, Josh Holloway, and Kellan Lutz.
Watch Tulisa and her X Factor Girls talk to Digital Spy below: