Following her sex tape escapades, Tulisa Contostavlos has reconnected with her Christian beliefs, insisting her "naughty days are firmly in the past".

The X Factor judge was mortified when footage of her having fun with an ex leaked on the internet.

But Tulisa, who was a pupil at the all-girls La Sainte Union Catholic School in Camden, north London, told The Sun: "I'm a lot more religious now.

"I kind of stopped believing in God but as I got older I found my faith again - and with that has come morals."

She added that her re-found faith will make her a perfect role model on The X Factor, saying: "My naughty days are firmly in the past."

Her former N-Dubz bandmate Dappy claims he used to see her pray a lot, saying last year: "She's very religious. I think she'll pray before every one of the live X Factor shows."

It certainly looks like someone's watching out for her, as she was crowned FHM magazine's Sexiest Woman in the World this week and her debut solo single Young looks set to go to No1 in the charts.

> IN PICS: TULISA'S US STYLE

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• Tulisa's US Adventure

  Tulisa arrived in LA at the beginning of February to record her debut album (Pic: WENN)

• Tulisa's US Adventure

  And only a few days in to her trip, she was doing a Katie Price and getting her hair seen to by top US stylists (Pic: WENN)

• Tulisa's US Adventure

  Getting her extennos sorted. (Pic: WENN)

• Tulisa's US Adventure

  In between recording sessions there was enough time to hit the town. (Pic: WENN)

• Tulisa's US Adventure

  Tulisa was all smiles on the trip despite her recent love split from boyfriend Fazer. (Pic: WENN)

• Tulisa's US Adventure

  But she batted off the attention of admirers at a pre-Grammys party. (Pic: WENN)

• Tulisa's US Adventure

  On her way out of the studio. (Pic: WENN)

• Tulisa's US Adventure

  Tulisa's style offensive was also much talked about as she showed off a stylish American wardrobe. (Pic: WENN)

• Tulisa's US Adventure

  Tulisa is so LA now she wears sunnies in the dark. (Pic: WENN)

• Tulisa's US Adventure

  On Valentine's Day Tulisa headed straight out on the town after leaving the studio. (Pic: WENN)

• Tulisa's US Adventure

  Partying with pals, it was a case of Fazer who? (Pic: Twitter)

• Tulisa's US Adventure

  Never far from her side was her PA and best mate Gareth Varey who also had a tattoo of her name done in his leg during their trip. (Pic: WENN)

• Tulisa's US Adventure

  (Pic: WENN)

• Tulisa's US Adventure

  (Pic: Splash)

• Tulisa's US Adventure

  And bumped into former <em>TOWIE</em> star Mark Wright. (Pic: Twitter)

• Tulisa's US Adventure

  With debut single <em>We Are Young</em> in the can, it was time to film the video. (Pic: Splash)

• Tulisa's US Adventure

  That's a lot of luggage there dear! (Pic: Splash)

• Tulisa's US Adventure

  Getting cheeky on the shoot. (Pic: Splash)

• Tulisa's US Adventure

  And of course Gareth had to get in on the action in the video as Tulisa showed off her curves in a swimsuit. (Pic: WENN)

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