The singer will release her self-titled EP in the US on June 26, which will include new single 'Mean Girls'.
Crow has unveiled a 30-second clip of her new song on Perez Hilton. Lyrics on the chorus include: "Mean girls, mean girls, I'm a just comb you outta my curls/ Mean girls, mean girls, you no longer run my world."
The star has also been confirmed as the support act for Big Time Rush's upcoming US tour, which starts on July 5.
Crow finished fifth on the first season of The X Factor USA after facing an emotional exit from the show.
The 14-year-old is currently signed to Columbia Records in America.
Listen to a clip of Rachel Crow's 'Mean Girls' below: