Lookin really pretty Cassandra was born to a Filipino father and African-American Mexican and West Indian mother  in 1986 in New London, Connecticut. Cassie attended the preparatory Williams School on the Connecticut College campus in New London, graduating in 2004. She is best known for her single "Me & U", which is ascending the Billboard charts.
Cassie became a recording artist unexpectedly. Shortly after being introduced to music producer, Ryan Leslie, her mother requested that Cassie record a song for her as a birthday gift. Cassie approached Ryan about producing the song, and Ryan put together a duet for them called "Kiss Me". As it turned out, Cassie's mother wasn't the only one who loved the song. Ryan played "Kiss Me" for Tommy Mottola, former chairman of Sony, and the record mogul behind the careers of Jennifer Lopez, Jessica Simpson, and most notably Mariah Carey. He offered Cassie a management deal, and weeks later she struck a deal with Ryan to produce her debut album. Cassie signed with P. Diddy's record label Bad Boy Recordings, after he heard her track "Me & U" played in a club.
Before the launch of her music career, Cassie was a fashion model for the Wilhelmina modelling agency, where she worked with Adidas, Complex magazine and Abercrombie & Fitch campaigns among others. As early in her modeling career as 2002 Cassie modeled for local department stores, the Delia's fashion catalogue and the popular magazine Seventeen.