The streets of downtown Nashville were filled with thousands of young Nashvillians and their families calling on lawmakers to keep students safe in school.

The group marched a mile loop across the city, from Deadrick Street to Public Square Park on Saturday morning, in support of stricter gun legislation after the school shooting at Marjory-Stoneman Douglas High School in Parkland, Florida.

The march in Nashville was just one of the dozens held in cities across the United States, including Parkland, Miami, Washington D.C., New York, Boston, and Philadelphia.

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Organizers expected up to 10,000 people to participate in the Nashville march.

Officials from the rally say even more showed up for today's march in Nashville, estimating the crowd was between 10,000 to 12,000 people.

SLIDESHOW: March for Our Lives rally in Nashville

"This is by students, it's about students, it's for students," said local March for Our Lives organizer and Vanderbilt student Grace Allaman.

Marchers started on Deadrick Street and looped around to Church Street, coming around on 3rd and ending at Public Square Park.

Some streets were blocked off and traffic slow-moving in the area. A security team was onsite for every step on the march to make sure students and their families remained safe.

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Nashville's Mayor David Briley spoke at the event on Saturday.

"It’s wonderful to see students standing up and saying, 'We shouldn’t have to fear going to school,'" Briley tweeted. "Young people: you can change the direction of this city and this country, too. Make sure you are registered to vote and vote in every election."

Some famous faces were spotted in the crowds in Nashville. Haley Williams, the lead singer of the Franklin-based band Paramore, was there, as well as Sarah Hyland, star of the hit show "Modern Family."

Country superstar Faith Hill also attended one of the marches on Saturday.

"We are marching tomorrow because we must listen to the children of this country," said Hill on Instagram. "They are the future and they will fight to make sure their future is protected. Get out and march!!!!!!!"

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Nashville darling, Taylor Swift, also posted about the event on social media.

"No one should have to go to school in fear of gun violence. Or to a nightclub. Or to a concert. Or to a movie theater. Or to their place of worship," Swift said. I’ve made a donation to show my support for the students, for the March For Our Lives campaign, for everyone affected by these tragedies, and to support gun reform. I’m so moved by the Parkland High School students, faculty, by all families and friends of victims who have spoken out, trying to prevent this from happening again."

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