The singer was "excited" to announce the news on her Twitter page this afternoon, confirming that she would return to her native country for six months to shoot the programme. Natalie will join Boyzone singer Ronan Keating, former Australian Idol winner Guy Sebastian and radio host Kyle Sandilands on the judging panel.
The singer has enjoyed worldwide success since she shot to fame after winning British talent show The X Factor in 2006 and is set to embark on her debut solo tour in Sheffield, England, tomorrow night. She is a dedicated vegan and refuses to wear any clothes made from animal products, so to ensure her show outfits were also cruelty-free she insisted on having a specially-commissioned wardrobe designed by Antonio Berardi.
The 20-year-old actress has been dating her Twilight co-star for several months, but the pair go to great lengths to keep their romance as private as possible. Kristen has now spoken about what she looks for in a partner, revealing good looks are not important to her, despite the fact that her current boyfriend is regularly voted one of the sexiest men in the world.
The 36-year-old make-up artist - who met the music mogul while working on `American Idol` - is reportedly planning to write a tell-all autobiography detailing every aspect of her life, including their romance.
The 16-year-old singer got in trouble with the authorities when he was younger after he and his friend snuck outside in the middle of the night, not realising there was a curfew in the area.
The actor - whose long-term partner Farrah Fawcett died last June after losing her battle against cancer - is said to be dating iconic 70s poster girl Cheryl Tiegs and sources claims the pair are smitten with each other.
The 47-year-old actor doesn`t mind if four-year-old Suri - his daughter with wife Katie Holmes - wears high heels or expensive dresses because he wants her to be able to express herself with her clothes.
The `Killers` actress - who raises adopted 17-month-old daughter with spouse Josh Kelley - thinks she would make a terrible secret agent because she always gives things away, though she takes pleasure in concealing herself in strange places.
The vampire series - which turned Robert Pattinson, Kirsten Stewart and Taylor Lautner into international superstars - took three awards at the event at London`s Royal Festival Hall.
The couple met while shooting the pilot for the hit American vampire programme Tue Blood in 2007. They got engaged last August, but have been reluctant to release details of their planned nuptials.
The 40-year-old British beauty admits she pushed herself too hard because she thought she would go "crazy" if she had to sit down and evaluate what she wanted out of life.
The 29-year-old actor plays dashing Prince Dastan in adventure epic Prince of Persia: The Sands of Time. He loved every aspect of the role, and would jump at the chance to make a sequel.
The stars met while shooting the Twilight film franchise. Despite persistent rumours they were dating since the first movie hit screens in 2008, Robert only recently confirmed they are an item. The pair go to great lengths to keep their romance out of the spotlight, even taking different cars to events so they aren`t seen together.
The singer is currently in Germany learning new stunts for her upcoming Funhouse Summer Carnival world tour. The 30-year-old star is famed for her daring stage shows, that usually feature her dangling from ropes suspended from the ceiling.
The British singer has penned for tracks for the `Russian Roulette` star`s next LP and is hoping they are considered good enough to make it onto the record.
The troubled actress - who was recently told by a court she had to wear an alcohol monitoring bracelet as part of her ongoing probation order - has been offered the role of a feisty army lieutenant by Kerry Wallum of Luck Films.
The 42-year-old former model - who has six-year-old daughter Beatrice with ex-husband Sir Paul McCartney - would love to have another youngster to look after, but thinks the world is "too overpopulated" to want to get pregnant again.
The soccer star - who became close friends with the actor when he moved to Los Angeles to play for LA Galaxy - is seeking advice from the actor about how to become a better public speaker after being asked to undertake a number of public engagements when the soccer World Cup takes place next month.
The former Playboy model - who has a five-month-old son Hank Baskett IV with husband Hank Baskett - appears in a raunchy movie alongside ex-boyfriend Justin Frye, but friends of the couple insist the American footballer was aware the footage existed before they got married.
The Black Eyed Peas star`s mother Debra Adams has revealed the pair have grown increasingly close since touring together and claims the producer is "very fond" of the British singer -who split from husband Ashley Cole in February after he was unfaithful to her.
The `Sex and the City` actress - who has seven-year-old son James Wilkie and 11-month-old twin daughters Marion and Tabitha with spouse Matthew Broderick - believes the key to a good marriage is to retain an air of mystery.
The actor - who is married to Katie Holmes - describes the story contained in his scripts to Suri and then listens to her questions because he thinks it makes him a better actor.
The `Foundations` singer - who also plays bass in punk band The Receeders - came up with the beginning of her hit tune `Mansion Song` spontaneously and had to write the lyrics in a text message.
The legendary producer - who is currently in prison serving a minimum 19-year sentence for the 2003 murder of actress Lana Clarkson - has masterminded the debut album of his wife Rachelle, `Out of My Chelle`, which will be released on June 8.
The 42-year-old singer - who has a nine-year-old son Rene-Charles with husband Rene Angelil - confesses she doesn`t like to talk about having more children but would love to add to her family in the future.