Sean Cos Mason aka Sean M is an underground hip-hop artist and poet from Montclair, NJ. Primarily born and raised in a single mother middle class artistic community, Sean Cos Mason grew up with music as his focal point of comfort, with writing as his therapy. Cos started writing poetry as a child, but later became intrigued by cipher sessions with his group Ice Grill, he would do rap battling in school cafeterias in her early teens. He eventually learned...
