Slaughterhouse is a hip hop group consisting of rappers Crooked i, Joe Budden, Joell Ortiz and Royce Da 5'9". The group formed in late 2008 after Crooked I, Joell Ortiz and Royce Da 5'9" appeared on the song "Slaughterhouse" from Joe Budden's album Halfway House. They took their name from the song. The members of Slaughterhouse all share some degree of controversy from their past in the music industry.
There are multiple artists with this name: 1) ROME is a Luxembourgish dark folk/martial act founded in late 2005 as the main output for the songs of Jerome Reuter and was joined by co-producer Patrick Damiani as official member in early 2008. ROME signed to the Swedish label CMI in 2006 to release an EP entitled "Berlin" (June 2006) and the albums "Nera" (November 2006), "Confessions d'un voleur d'ames" (April 2007), "Masse Mensch Material" (March 2008).
The Coup is a political hip hop group based in Oakland, California. It formed as a three-member group in 1992 with rappers (Raymond) Boots Riley and E-Roc along with DJ Pam the Funkstress. E-Roc left on amicable terms after the group's second album, but appears on the track "Breathing Apparatus" on The Coup's third album, Steal This Album. The group is now a duo. The Coup, part of the sub-genre of political hip hop, is politically radical and Marxist in their music, and align themselves with other radical hip-hop groups like dead prez.