Def IV
Def IV


Houston, Texas, United States


Hip hop

Years active



Rap-A-Lot (1988)
DSC (1991)

Associated acts

Mo' City Posse

Past members

  • Jon B
  • Lonnie Mac
  • Prince-E-Z-Cee
  • Vicious Lee

Def IV was an American hip hop group from Houston, Texas. The group consisted of Prince-E-Z-Cee, Vicious Lee, Jon B and Lonnie Mac. Def IV were among the first signees to Rap-A-Lot Records, and released their only album, Nice and Hard, in 1988. Three years later, they independently released the single "D.S.L.'s", which was said to be from their upcoming album Ways of the Rhythm, but it was never released.


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