Child Rebel Soldier (CRS) is a rap supergroup consisting of Lupe Fiasco (the Child), Kanye West (the Rebel) and Pharrell Williams (the Soldier). The group made it's debut on a Kanye West mixtape on a song titled "US Placers", which samples Thom Yorke's "The Eraser". Although no album has been announced, Lupe has stated that the group will be heading into the studio to see if they can create something.