Additional celebrities including Anna Kendrick, Gina Rodriguez-LoCicero and Tessa Thompson were out on Saturday to protest against the Trump administration.

No Kings” organizers described the events as a “nationwide day of defiance” against President Donald Trump and authoritarianism.

While President Donald Trump attended a military parade he ordered on his birthday to recognize the 250th anniversary of the U.S. Army in Washington, D.C., thousands of people in the Kansas City metro area flexed their First Amendment right Saturday to voice their opposition to polices of the Trump administration during the “No Kings” national day of defiance.

Thousands gathered for the No Kings protest at the Michigan State Capitol building in Lansing on Saturday, June 14.

An estimated 10,000 people were in attendance at the “No Kings” rally that began in Pioneer Park and marched north through the downtown area, the Salt Lake City Police Department said. Gunfire was heard at around 8 p.m., with video posted online showing protesters fleeing in terror.

Before you let your voice be heard, advocacy and civil right groups stress the importance of being prepared before you go. And knowing your rights.

Far-right groups are humming with talk of potential violence ahead of massive “No Kings” Day demonstrations that are expected to attract millions of protesters Saturday, according to The Wall Street Journal.

Here's how to stay safe and what to know about your rights if you get arrested, detained or encounter tear gas during Houston's No Kings Day protest.