Castro, the fourth of five children, was born on Long Island, New York to a Puerto Rican father, Albee Castro, and Kathleen, an American mother of Italian American and Jewish descent. She has two older sisters, an older brother and a younger brother and currently lives in Los Angeles, California to record some new music. Raquel was named after her mother's favorite actress, Raquel Welch.
Recently, Castro released her first single in the music industry, a song titled "Diary." According to her YouTube page, the song was written by Alyssa Bonagura and Ted Bruner. It was produced by J Chris Griffin. It was released on iTunes and CDBaby on February 1, 2012. She has uploaded the music video for "Diary" on YouTube and recorded a dance remix of the song, released on March 11, 2012. The remix was released under the title "Diary (J Chris Griffin Remix)." She is also working on her debut album.
A single called "Game Over" was released on January 29, 2013. Castro wrote it with the help of the IDA Program.