Kim Kardashian West has two children with her husband, Kanye West: North, 3, and Saint, 7 months. And in response to two fatal police shootings of black men this week, she posted an essay, writing, "I want my children to grow up knowing that their lives matter."

"I do not ever want to have to teach my son to be scared of the police, or tell him that he has to watch his back because the people we are told to trust — the people who 'protect and serve' — may not be protecting and serving him because of the color of his skin," she wrote.

Kardashian West may not be considered the most politically overt public figure, but she has had her moments. She's been outspoken about the Armenian genocide, and has waded into the the debate over police brutality and Black Lives Matter before, tweeting about the death of Sandra Bland, who died in a Texas jail cell last year. And she spoke about how becoming the mother of black children changed her perception of racism, from believing "that it was someone else's battle" to recognizing that the problem is still alive and deadly.

But on Friday, Kardashian West declared "#BlackLivesMatter." She wrote how "appalled and completely heartbroken" she was after watching videos of  "two innocent black men, get senselessly murdered by police officers," and urged people to contact their elected officials and donate to families of those killed by police this week, Philando Castile and Alton Sterling — following a similar tack to what Beyoncé posted on her site Thursday.

This week's events have inspired numerous musicians, actors and celebrities to express solidarity, through very personal words, through actions, through art. Jay Z released his first new song in years Friday, a track titled "Spiritual."

"I made this song a while ago, I never got to finish it," he wrote on Tidal. "Punch (TDE) told me I should drop it when Mike Brown died, sadly I told him, 'this issue will always be relevant.' I'm hurt that I knew his death wouldn't be the last. I'm saddened and disappointed in THIS America — we should be further along."

In the chorus, Jay Z raps, "I am not poison / Just a boy from the hood that got my hands in the air / In despair don't shoot / I just wanna do good."

"Today, again, I am called to put my hand on my heart and affirm that: I matter. MY life matters," Kerry Washington wrote in a message posted on social media. "As a human my life matters. As a woman, my life matters. As a Black person, my life matters."

Snoop Dogg and the Game, rappers from Los Angeles, led a peaceful march of men Friday morning to the Los Angeles Police Department's headquarters.

"The mission is to reintroduce our community to the LAPD …  just to get some understanding and dialogue," Snoop Dogg told the Los Angeles Times. "We're the ones they're going to be dealing with, we're the ones that are going to be pulled over. … We're here on peace."