G-Unit is a hip-hop group founded by rapper 50 Cent in the early 2000s. The group originally included members Lloyd Banks, Tony Yayo, and later Young Buck. They gained fame for their catchy songs and collaborations, contributing to the popularity of East Coast hip-hop. The group released several successful albums, including "Beg for Mercy" in 2003, which showcased their unique style and lyrical prowess. G-Unit also expanded into clothing and other business ventures, solidifying their influence in both music and popular culture.