Raised in suburban Clifton, New Jersey, in a Puerto Rican family, Fonseca started his career as a fashion model.

He left his studies to focus on the tribal and house music scene emerging in New York during the late 1990s.

[3][4] Fonseca has remixed songs by Sia, Lady Gaga, Rihanna, Katy Perry, Beyoncé, Pet Shop Boys and Blondie.

He cites the late Grammy Award-winning DJ, producer, and remixer Peter Rauhofer as his mentor.

In 2013, Fonseca produced his first original composition, a collaboration with Blondie titled "Mile High".