Ska evolved in the early '60s, when Jamaicans tried to replicate the sound of the New Orleans R&B they heard over their radios. Instead of mimicking the sound of the R&B, the first ska artists developed a distinctive rhythmic and melodic sensibility, which eventually turned into reggae music. In the late '70s, a number of young British bands began reviving the sound of original ska, adding a nervous punk edge to the skittish rhythms. Furthermore, the Ska Revivalists were among the only bands of the era to feature racially integrated lineups, which was a bold political statement for the time. Indeed, ska revival was more implicitly political than any of their British punk and new wave contemporaries.