Gang of Four were probably the greatest band to emerge from England's late-seventies "post-punk" scene. They made music with a mix of funky beats and angular jarring guitar lines that influenced a ton of bands that could never duplicate their sound. In the early 1980's, they became more dance-oriented and accessible with fairly big hit songs "Is It Love?" and "I Love A Man In A Uniform," the latter of which was banned by the BBC for its anti-war sentiment.
Their debut album "Entertainment" is one of my favorite records of all time, and the entire LP is worth a listen, but I've included a few highlights here, along with a couple other later songs.