The Cranberries - Zombie (youtu.be)
Rage Against The Machine - Guerrilla Radio (youtu.be)
Haven't seen any RATM in this community yet. But i feel like basicly all their songs would fit here.
System Of A Down - B.Y.O.B. (piped.video)
Don't Be Friends With A Nazi - Pink Williams (www.youtube.com)
"War" — Sinéad O'Connor (www.dailymotion.com)
System Of A Down - Boom! (youtu.be)
Watching this video (probably 15 years ago) was the moment I realised I was left wing.
Tenacious D - Time Warp (youtu.be)
Have A Cigar - Pink Floyd (youtu.be)
Rise Against - Re-Education (Through Labor) (www.youtube.com)
Crosby, Stills, Nash, and Young - 4 Dead in Ohio (www.youtube.com)
Pete Seeger -Which Side are You On? (youtu.be)
This is a legendary classic, covered by dozens of leftist artists. While I prefer studio recordings generally, hearing an entire crowd singing this song gives so much more weight to it. I also really like this (admittedly it's mostly a meme) edit with rifle fire to really drive home that we would not have our labor rights today...
Pink Floyd - Welcome to the Machine (youtu.be)
I suppose I'm cheating a bit by posting Pink, but their leftist messages are popular for a reason!
Billy Bragg - Rich Men Earning North of a Million (www.youtube.com)
Neil Young - Rockin' In The Free World (www.youtube.com)
My favourite example of a song that people think is patriotic but isn't even close.
System Of A Down - B.Y.O.B. (www.youtube.com)
Magpies - Workers of the World, Awaken! (www.youtube.com)
This one is a cover of a song written by Joe Hill. The IWW still publishes the little red songbook, which has this song in it!
Whistle Boeing - Jesse Welles (youtu.be)
SMZB - 'Ten Thousand Ways To Rebel' - Chinese Punk (www.youtube.com)
Another Chinese punk band that's explicitly leftist (and black flag).