John Lennon's song 'Imagine' was released in 1971 and quickly became a global hit. The song's lyrics, which envision a world without war, poverty, or hunger, resonated with people around the world and made it an enduring symbol of peace and unity.

Folk music, particularly artists like Bob Dylan and Joan Baez, became closely associated with the counterculture movement and its opposition to the Vietnam War. Folk songs often carried messages of protest and social change, and became a powerful tool for expressing dissent.

Bob Dylan's song 'Blowin' in the Wind' was released in 1963 and quickly became an anthem for the civil rights movement. The song's lyrics, which ask rhetorical questions about social injustice and inequality, resonated with people around the world and became a powerful symbol of the struggle for equality.

Hip hop music, particularly artists like Public Enemy and N.W.A., emerged in the 1980s and became associated with political activism and social change. Hip hop songs often addressed issues of racism, poverty, and inequality, and became a powerful tool for expressing dissent and raising awareness.

Marvin Gaye's song 'What's Going On' was released in 1971 and quickly became a powerful protest song against the Vietnam War and social injustice. The song's lyrics, which ask questions about the state of the world and call for change, resonated with people around the world and became a symbol of the anti-war movement.

Grunge music, particularly artists like Nirvana and Pearl Jam, emerged in the 1990s and became associated with political activism and social change, particularly among young people. Grunge songs often addressed issues of alienation, disenfranchisement, and environmentalism, and became a powerful tool for expressing dissent and raising awareness.

Bob Dylan's song 'The Times They Are A-Changin'' was released in 1964 and quickly became an anthem for social and political change during the 1960s. The song's lyrics, which call for change and challenge the status quo, resonated with people around the world and became a symbol of the counterculture movement.

Salsa music, particularly artists like Ruben Blades and Celia Cruz, emerged in the 1970s and became associated with political activism and social change, particularly in Latin America. Salsa songs often addressed issues of poverty, inequality, and social justice, and became a powerful tool for expressing dissent and raising awareness.

Bob Marley's song 'Get Up, Stand Up' was released in 1973 and quickly became an anthem for workers' rights and social justice. The song's lyrics, which call for people to rise up and fight for their rights, resonated with people around the world and became a symbol of the struggle for equality and justice.

Punk music, particularly artists like the Sex Pistols and the Clash, emerged in the 1980s and became associated with political activism and social change, particularly in the United Kingdom. Punk songs often addressed issues of unemployment, poverty, and social inequality, and became a powerful tool for expressing dissent and raising awareness.

Billie Holiday's song 'Strange Fruit' was released in 1939 and quickly became a powerful protest song against racism and lynching. The song's lyrics, which describe the lynching of a black man in the South, were controversial at the time, but Holiday's performance of the song helped to raise awareness of the issue and became a symbol of the struggle for racial justice.

Hip hop music, particularly artists like Tupac Shakur and Public Enemy, emerged in the 1990s and became associated with political activism and social change, particularly in the United States. Hip hop songs often addressed issues of racism, poverty, and inequality, and became a powerful tool for expressing dissent and raising awareness.

James Brown's song 'Fight the Power' was released in 1968 and quickly became an anthem for the Black Power movement. The song's lyrics, which call for black people to fight for their rights and against oppression, resonated with people around the world and became a symbol of the struggle for racial justice.

Reggae music, particularly artists like Bob Marley and Peter Tosh, emerged in the 1970s and became associated with political activism and social change, particularly in the Caribbean. Reggae songs often addressed issues of poverty, inequality, and social justice, and became a powerful tool for expressing dissent and raising awareness.

Pete Seeger's song 'We Shall Overcome' was written in the 1940s and became an anthem for the civil rights movement in the 1950s and 1960s. The song's lyrics, which call for people to overcome oppression and injustice, resonated with people around the world and became a symbol of the struggle for equality and justice.