Ice-T

The Original Gangster turned actor was once called the "Bob Dylan of rap." He famously attacked Tipper Gore for introducing the Parental Advisory sticker, now a commonplace warning on almost every rap album. Some of his most popular hits include "6 In the Mornin'," "New Jack Hustler" and "Cop Killer." The OG helped start the lyrical trend of sex and violence, planting the seeds for a long line of followers.