Christopher Tafoya, better known by his stage name Sleep or Sleep of Oldominion, is an American hip hop artist from Farmington, New Mexico, who is currently based in Portland, Oregon. He is a founding member of the Pacific Northwest hip hop collective Oldominion and hip hop duo The Chicharones alongside Josh Martinez. He is signed to Strange Famous Records.

Matthew Edward Kimber, better known by his stage name Josh Martinez, is a Canadian rapper, record producer and record label executive. In the early 2000s, Martinez started his own label, Camobear Records, to which fellow rap artist Moka Only is signed. Josh Martinez was once named by Urb Magazine as one of its "Next 100 Rising Stars".