Gregory Poe (born February 4, 1986), known as iLLmacuLate, is an underground hip hop artist/rapper of Native American descent from Portland, Oregon, USA.

At age 17, he won the 2004 Scribble Jam freestyle rap competition, making him the youngest winner in the competition's history.
He is a member of the Portland-based Sandpeople group and the 667 Kult crew. With his rhyme partner The Saurus, he competed in and won the 2006 and 2007 World Rap Championships, and the 2006 Spin the Mic competition.
In 2007, Vibe magazine named him one of the Best MySpace Rappers in America.