Mobb Deep released their debut album Juvenile Hell in 1993, jumpstarting a career of menacing music filled with talk of guns, violence and street life. The Queensbridge, N.Y.-based crew is primarily comprised of rappers Havoc (who also produced Mobb's sound) and Prodigy, who became a standout MC of the era. After losing some steam in the early 2000s, Mobb's career was revitalized by 50 Cent, who signed his fellow Queens, N.Y., rappers to his G-Unit label. However, the group again stalled as Prodigy served a three-year jail sentence for gun possession. When he was released in 2011, the group announced their separation from G-Unit in favor of independent releases.