Barbie: A Fairy Secret is a 2011 animated fantasy film directed by William Lau and written by Elise Allen. Produced by Rainmaker Entertainment, it is the second film produced by Mattel Entertainment under the sales mark name of Barbie Entertainment. It was first released on DVD on March 15, 2011, and made its television premiere on Nickelodeon on April 17, 2011. The 19th entry in the Barbie film series, it features the voices of Diana Kaarina, who reprised her role as Barbie, and Adrian Petriw as Ken. The plot has a shared universe with Barbie: A Fashion Fairytale, where Barbie must team up with her frenemy Raquelle to save Ken from marrying a fairy princess and being trapped in a fairy world forever.