Last month, 9th Wonder and Talib Kweli -- under the pseudonym Indie 500 -- were graciously joined by West Coasters Problem and Bad Lucc. Today, they're sharing the powerful visuals from their latest track, ''Which Side Are You On'', featuring another pair of guests in Tef Poe and Kendra Ross. Furthermore, Kweli revealed the concept behind ''Which Side Are You On'', as well as it's moving video. Kweli says the song ''pays homage to those murdered by the police over the past year and those who have taken a stand'' and that the video -- which contains footage from the Ferguson Rocks and Ferguson Is Everywhere fundraiser -- features Tom Morello, Bun B, Common, Outernational, Cornel West, Pharoahe Monch, Jasiri X, M-1 of dead prez and K'Valentine all of whom ''participated in the August concerts''. You may hit the play button on ''Which Side Are You On'' after the jump.