Detroit's MC5 also came out of the underground rock music scene of the late 1960s. They introduced a more aggressive evolution of garage rock which was often fused with sociopolitical and countercultural lyrics of the era, such as in the song "Motor City Is Burning" (a John Lee Hooker cover adapting the story of the Detroit Race Riot of 1943 to the Detroit riot of 1967). MC5 had ties to radical leftist organizations such as "Up Against the Wall Motherfuckers" and John Sinclair's White Panther Party.