Gang Of Four grew out of the late-'70s English post-punk movement, making danceable rock out of radical political theory. As unlikely as that may sound now, their music went on to influence countless bands that followed, from the Red Hot Chili Peppers to Franz Ferdinand. Friday night at Toronto's Phoenix Concert Theatre, the two remaining founding members, Jon King and Andy Gill, kicked off the band's North American tour in support of their first album in 15 years, the much praised Content. Wearing tight black pants and a rumpled shirt unbuttoned to expose a taut physique, King stalked the stage like a villain out of Shakespeare, leering and jabbing with an accusing finger as if to say, "I know you're only here for the old songs! Shame! Shame!" But, in reality, the cuts from Content fit tidily next to classic material from their masterworks Entertainment!