Ronald Caveman Rosario is the self proclaimed Ambassador of Trap (music) who began his music career at the age of 16, after meeting Freeway of Roc-A-Fella in his hometown of Orlando, FL. He taught himself how to work Protools while on the road with Freeway and has engineering credits with multiple artists on the infamous label. He earned his first Grammy in 2004 for working on Ashanti's self titled album.

Today, he's most known for his role in Metro Boomin's career, who he found on Twitter while managing another super producer Lex Luger. He built a relationship with, then Metro Beats and his mother and they began driving from St. Louis to Atlanta so Metro could work with OJ Da Juiceman, who gave him the name Metro Boomin. Once Metro graduated from high school he relocated to Atlanta and the rest is history.

Caveman has executive produced and engineered some of Gucci Mane's biggest projects while incarcerated during the first year of Gucci's prison sentence 2013-2014 (State vs Radric Davis 2, The White, Purple, and Green Albums, Traphouse 4, Young Thug ft Gucci Mane Again). He then began working with Peewee Longway on The Blue M&M 2, Mr. Blue Benjamin, & Longway Sinatra (Master Peewee).