Sam Jackson has a real challenge for all the celebrities who ever-so-boldly dumped a bucket of ice water on their head for ALS—he wants them to sing a song inspired by Eric Garner calling for the end of police violence. Awesome.

The "We ain't gonna stop till people are free" song is pretty simple. He sings it himself in a video posted to his Facebook:

I can hear my neighbor cryin' 'I can't breathe'

Now I'm in the struggle and I can't leave.

Callin' out the violence of the racist police.

We ain't gonna stop, till people are free.

We ain't gonna stop, till people are free.

Jackson's challenge is definitely reminiscent of Orlando Jones' co-opting of the ALS bucket challenge in which he dumped a bucket full of bullet shell casings on his head to direct attention towards Michael Brown's death and the protests in Ferguson.

With congressional staffers, professional athletes, on-air personalities, and others protesting the non-indictment of the Daniel Pantaleo for the death of Eric Garner (as well as the non-indictment of Darren Wilson in the death of Michael Brown), it would be incredibly powerful to see the very same celebrities who happily underwent about four seconds of icy fun discomfort take a stand on the injustices we have seen.