Princess Protection Program is a 2009 Disney Channel Original Movie that premiered on June 26, 2009 in the United States and winner of the Teen Choice Awards 2009 for Choice Summer TV Show. It stars Demi Lovato and Selena Gomez.

Princess Rosalinda Maria Montoya Fiore (Demi Lovato) is about to be crowned queen of the small nation of Costa Luna. General Kane (Johnny Ray Rodriguez), the dictator of neighbouring country Costa Estrella, invades her palace with his agents during her coronation rehearsal, and attempts to capture the royal family and take over the country. Joe Mason (Tom Verica), an agent of the Princess Protection Program, a secret organization funded by royal families that looks after endangered princesses, whisks her away to safety via helicopter. Kane’s agents however succeed in capturing her mother, Queen Sophia.

The Princess Protection Program hides Rosalinda in Mr. Mason’s home in Louisiana, where she is to pretend to be a typical American teenager named Rosie Gonzalez. She meets Mr. Mason's daughter, Carter Mason (Selena Gomez), an insecure tomboy who works at the family bait shop and dreams of going to the homecoming dance with her crush, Donny (Robert Adamson). Though Carter initially treats Rosie with annoyance and barely-masked hostility, she warms up to her after Rosie explains her situation, and the two become close friends. Carter teaches Rosalinda to act like a normal girl and Rosie shows Carter how to disarm those that scorn them by behaving as a princess. Rosie soon becomes popular at their high school.

Demetria Devonne "Demi" Lovato (born August 20, 1992) is an American singer-songwriter, musician, and actress. Her earliest roles included Angela on Barney & Friends, before she became better known for her starring roles in the Camp Rock movies, as Sonny Munroe in the Disney sitcom Sonny with a Chance, and as the star of the 2009 movie Princess Protection Program. She is also involved in philanthropic activities through charity work and various social and environmental causes.

As a solo musical artist, Lovato released her debut album Don't Forget on September 23, 2008. The album debuted at number two on the Billboard 200 selling 89,000 copies in the first week. It has since shipped over 500,000 copies, earning a gold certification in the United States. Lovato released her second album, Here We Go Again, on July 21, 2009. The album debuted at number one on the Billboard 200, selling 108,000 copies in the first week. Her third studio album, Unbroken, was released on September 20, 2011 and peaked at number four on the Billboard 200. She is working on her fourth studio album.

Selena Marie Gomez (born July 22, 1992) is an American actress and singer best known for portraying Alex Russo in the Emmy Award-winning Disney Channel television series Wizards of Waverly Place. She subsequently ventured into feature films and has starred in the television movies Another Cinderella Story, Wizards of Waverly Place: The Movie, and Princess Protection Program. She made her starring theatrical film debut in Ramona and Beezus.

Her career has expanded into the music industry; Gomez is the lead singer and founder of the pop band Selena Gomez & the Scene, which has released three RIAA Gold certified studio albums, Kiss & Tell, A Year Without Rain, and When the Sun Goes Down, spawned three RIAA Platinum certified singles, "Naturally", "Who Says" and "Love You Like a Love Song" and charted four No. 1 Billboard Hot Dance Club Songs. Gomez has also contributed to the soundtracks of Tinker Bell, Another Cinderella Story, Wizards of Waverly Place, and Shake It Up after signing a record deal with Hollywood Records.