Child Rebel Soldier, the hip-hop supergroup featuring Lupe Fiasco, Kanye West and Pharrell Williams, may be over. The group have released two tracks ‘Us Placers’ on Kanye’s ‘Can’t Tell Me Nothing’ mixtape in 2007, and ‘Don’t Stop’ which appeared as part of Kanye’s G.O.O.D. Fridays releases prior to My Beautiful Dark Twisted Fantasy last year.