Prophets of Rage members take a knee for Kap at Shoreline concert

(Left to right) Tim Commerford, Chuck D, Brad Wilk, B Real, and Tom Morello of Prophets of Rage take a stand on violence at Shoreline Amphitheatre on September 14, 2016 in Mountain View, California. (Left to right) Tim Commerford, Chuck D, Brad Wilk, B Real, and Tom Morello of Prophets of Rage take a stand on violence at Shoreline Amphitheatre on September 14, 2016 in Mountain View, California. Image 1 of / 10 Caption Close Prophets of Rage members take a knee for Kap at Shoreline concert 1 / 10 Back to Gallery

At Tuesday night's Prophets of Rage concert at the Shoreline Amphitheatre in Mountain View, the bandmates took a knee for the National Anthem.

Members of the supergroup — including Public Enemy's Chuck D and DJ Lord, Cypress Hill's B-Real, and Rage Against the Machine's Tom Morello, Tim Commerford, and Brad Wilk — didn't offer any spoken commentary during their act of protest. Rather, the five emerged on stage wearing 49er Colin Kaepernick's red #7 jersey, and silently kneeled as the Anthem played over the speaker.

The below video, posted Wednesday morning, also shows Prophets of Rage members raising their fists in the air.

Bassist Commerford has previously addressed the Kaepernick controversy, telling TMZ in late August that the 49er is a "badass" and "has an open invitation to come hang out...and be a part of our show."

"He won me over," he continued. "When you go up against a huge organization like the NFL, and you just say, 'I'm going to say what I want, I don't care what the repercussions are' — that's punk."

Chuck D responded similarly to Kap's actions, tweeting, ".@Kaepernick7 statement rings right now. There's no f—n way there should be near 3 million people in USA prisons. Today's jocks must speak up."

See the video from their Shoreline show below.

Alyssa Pereira is a staff writer for SFGATE. Follow her here on Twitter.