Grandmilly started using his musical talent in 2010 by producing his own tracks, in Hempstead, NY. After learning his way around studio equipment he began writing and recording all of his own raps. Producing a track for Gucci Mane, Sky Lexington, and Bones of Team Sesh. In 2012, Milly released a song called "R.I.P Aaliyah" which caught the attention of Asap Mob and Raider Klan. Since then he has traveled to perform shows in California, Texas, Arizona, as well as his hometown New York.