Gregory Edward Jacobs (August 25, 1963 – April 22, 2021), known professionally as Shock G and by his alter ego Humpty Hump, was an American rapper and musician who was best known as the lead vocalist of the hip hop group Digital Underground.

He was mentored in the craft by his cousin Rene Negron (also known as DJ-Stretch), and their close friend Shawn Trone (also known as MC Shah-T of the parody-rap group No Face) who suggested Greg use the name "Shah-G".

[6] They performed at parties and for crowds at Riverfront Park's outdoor Sunday gatherings, eventually capturing the interest of Tony Stone, a program director at WTMP radio, which was the city's primary R&B station.

[7] After being fired for playing the fifteen-minute-long album version of "(Not Just) Knee Deep" by Funkadelic in a five-minute time slot, and also after tensions with his father escalated, Jacobs found himself backpacking the United States for a few years, drifting through odd jobs and petty criminal adventures.

In 1985, after two years of producing local artists for hire, playing solo piano gigs around town, performing with Waters, and being a keyboardist in Warren Allen Brooks' band, Jacobs and his aspiring-actress girlfriend Davita Watts eloped to Los Angeles in search of greater opportunity.

There he played keyboards in Kenny McCloud's pop-funk band Onyx before leaving Los Angeles and arriving in the San Francisco Bay Area where he found work in an Oakland music store, and where his group Digital Underground would form a few years later.

"Doowutchyalike" paved the way for Digital Underground's debut album Sex Packets and the highest-charting song of their career "The Humpty Dance" both released in early 1990, and both achieving platinum sales certifications by the RIAA.

[10] While he rapped in his normal voice as Shock G, as "Humpty Hump" he adopted a more nasal sound as part of this character's exaggerated buffoon persona that included garish clothes and Groucho glasses.

A fictional biography was included in Digital Underground's press kit stating that Humpty Hump's real name was Edward Ellington Humphrey III and he wore the Groucho glasses after burning his nose in a deep fryer accident.

Within the show's story, the title character, Otis Drexell, insists that the furnace repairman looks exactly like Humpty Hump, but neither he nor his coworker (Jason Priestley) have heard of any such hip-hop artist, especially not one with such a ridiculous name.

The episode ends with a live performance of Digital Underground's "No Nose Job" on a cruise ship full of Sports Illustrated swimsuit models, which is presented as a scene from one of Drexell's dreams.