Tracy Lynn Curry (born June 10, 1968), better known by his stage name the D.O.C., is an American rapper, songwriter, and record producer from Dallas, Texas.

After the disbandment of Fila Fresh Crew in 1988, Curry promptly began recording solo work.

Shortly after the album's release, Curry suffered a severe car crash that permanently changed his voice.

As a teenager, Curry began his career as a member of Fila Fresh Crew, a hip hop trio that originated in Dallas, Texas.

By this point, Curry had moved to Los Angeles and become acquainted with members of N.W.A and Ruthless Records.

contributed lyrics to N.W.A's debut studio album, Straight Outta Compton,[2] and performed the opening verse on "Parental Discretion Iz Advised".

[3] Allmusic gives the album a five-star rating and describes it as "an early landmark of West Coast Rap" as well as "an undeniable masterpiece".

Driving home from a party, he fell asleep at the wheel and his car veered off the freeway.

Curry, who was not wearing a seat belt, was thrown out the rear window, slamming face-first into a tree.

[4] In a 2015 interview with DJ Vlad, Curry stated that he was under the influence of alcohol and cannabis and was actually pulled over before the accident but the police let him go.

continued to write for N.W.A and contributed lyrics and minor vocals to their 1990 EP 100 Miles and Runnin', where he co-wrote all the songs except for "Just Don't Bite It" and "Kamurshol", and their final album Niggaz4Life.

also used his talents as one of the writers for Dr. Dre's debut solo album The Chronic, contributing to the tracks "Nuthin' but a G Thang", "Lil' Ghetto Boy", "A Nigga Witta Gun", "Lyrical Gangbang" and "Bitches Ain't Shit".

worked on Snoop Dogg's debut album Doggystyle, and added some vocals on the song "Serial Killa".

"Real Muthaphuckkin G's", from Eazy-E's 1993 extended play It's On (Dr. Dre) 187um Killa, includes lyrics sampled from "It's Funky Enough" in the song's hook.

[7] The name of the album is a reference to Charles Manson's idea of The Beatles' "Helter Skelter" prophesying the end of the world.

Taking lyrics he had already written for Heltah Skeltah, he recorded Helter Skelter, keeping the name to spite Dre.

[7] His lyrics were inspired by the writings of Milton William Cooper, which is especially noticeable in songs Secret Plan and Welcome to the New World.

appeared on stage with Dr. Dre and Snoop Dogg at The Centrum in Worcester, Massachusetts during the Up in Smoke Tour.

's presence on this album is minimal however, making an appearance to introduce tracks or perform in skits such as "My Prayer" and "Souliloquy".

The only single released from Deuce was "The Shit", which features former-N.W.A members MC Ren and Ice Cube, along with Snoop Dogg and 6Two.

[16] In 2022, he collaborated with Codefendants, a new Punk Rap group formed by Ceschi, Sam King (Get Dead), and Fat Mike (NOFX) on a track called "The Fast Ones", which was featured on their debut album, “This is Crime Wave”.