Prolyfic (born David Lemar Ewing Jr.; April 2, 1981) is an American Grammy-nominated hip-hop record producer, and songwriter best known for his work[1][2][3] with hip hop artist Lupe Fiasco.

Although a student at Simeon Career Academy on the southside, he frequently participated in freestyle battles at local parties across town, he made way to gain the approval of hip hop underground audiences, alongside fellow members of his Inner Circle/I.C.U squad.

"[4] In 2000, Prolyfic inked his first deal with local production company "Infared Music Group", alongside fellow producer Boogz, and other hip hop acts such as Yung Berg,[4] & L.e.p.

His first production placement[5] was on Dame Dash Presents: Paid In Full/Dream Team Soundtrack[6] with Oschino & Sparks on the song entitled "On and Poppin".

as his mentor, teacher, & friend,[4] Prolyfic learns by watching and studying under the legendary Chicago producer's wing.