Samuel L. Jackson called out to celebrities who participated in the Ice Bucket Challenge to join him in singing a song against racist police brutality, according to The Verge.

The American actor and film producer uploaded a video on his facebook page Saturday, asking fellow celebrities, who have poured ice on their heads, to participate in the movement that raises awareness against racism in the police force. Jackson sang on the video in appeal to the murder of Eric Garner, who died after a police allegedly put him in chokehold death.

"I can hear my neighbor crying 'I can't breathe,' now I'm in the struggle and I can't leave, calling out the violence of the racist police," Jackson sang the lyrics. "We ain't gonna stop till people are free."

The actor ended the 48-second video clip, asking his fellow stars to "come on, sing it out."

Another celebrity has also spoken against the issue of police brutality before. Actor Orlando Jones raised awareness on the problem after the killing of Michael Brown in August in the Ferguson shooting, according to The Free Thought Project.com. Referring to the same famous ice bucket challenge, Jones poured a bucket of bullets on his head as a call to action.

"My bullet bucket challenge' is not about pointing fingers and it's not about being angry," Jones said in his video. "Every shell casing in that bucket represents the life of someone who fought and died in the goal for civil rights and human dignity.

"It's not about black or white," Jones continued. "It's not about rich or poor. It's about us vs. them. There are more of us - from all races, genders and identities - then there will ever be of them. And we will be victorious."

On the same day that Jackson uploaded his video, many people gathered at the streets of Manhattan to show their protest on the decision of a grand jury not to indict an NYPD police officer, who was accused of Garner's death.