Beyonce, Taylor Swift, Demi Lovato and other stars encourage people to vote on Election Day So many important races are at stake.

Celebrities are heading to the polls in droves for the 2018 midterm elections.

Political activism has taken off across the nation and many Hollywood stars are trying to persuade Americans why it's so important to vote Tuesday.

They're tweeting and posting pics at the polls, a reminder to their fans to cast a ballot.

Taylor Swift encourages her massive following to vote

The singer called on her 12 million Instagram followers to get to the polls for the 2018 midterm elections in a series of videos she posted.

“It's not enough to just want change. It's not enough to just want to vote,” she said in one video. “You have to go and make change by voting, and today is your opportunity to do that. I promise you it feels so wonderful to exercise that right that you have.”

Demi Lovato resurfaces on Instagram to share voting picture

The singer returned to the social platform with a snap of her at the polls.

This is the first post Lovato has shared since speaking out about her addiction in August after her suspected drug overdose. “I am so grateful to be home in time to vote!” she captioned the photo.

"One vote can make a difference, so make sure your voice is heard! Now go out and #VOTE!" she concluded.

Rihanna issues last-minute plea to register and endorses Abrams

The singer alerted her followers about same day voter registration in some states. She also added that the time to take action is now.

“The most important day for the rest of your lives...all you have is right now! TODAY!!” she wrote alongside the post. “If you’re tired of complaining about the state of the country and government, get up and do something about it!!! #VOTE ... simple!!! You have no excuse, and If you live in any of these states it’s not too late to register today!! C’mon man, LETS GO!!!!!“

She also posted a message endorsing Georgia gubernatorial candidate Stacey Abrams.

"GEORGIA: I’m sure you already know, but incase you’re still wondering...it’s all about @StaceyAbrams for Governor! Stacey is an inspiration to women across the world!!! She has the vision and experience to lead Georgia running on an incredible platform to: decriminalize poverty, end cash bail, make college debt free, expand access to healthcare."

Rihanna is just one of the many in Abrams’ celebrity fan base. Oprah and Will Ferrell both stumped for the Democratic candidate recently.

Yara Shahidi hits the polls with her family

“Black-ish” star Yara Shahidi shared a snap alongside her family while visiting the polls.

"Love seeing all of you civically active humans!" she captioned the post. The 18-year-old is extremely vocal about her desire to push millennials to take voting seriously this year.

She also shared a video arriving at her polling center.

Jessica Biel informs voters on transit options to the polls

The actress informed her followers that both Uber and lyft are offering free and discounted rides to polling stations.

Kevin Hart shows off his official ballot

The comedian shared a video showing off his official ballot after voting.

“I got up. I voted! Don't just talk about it Be about it. Go make your presence felt,” he said.

Dwayne "The Rock" Johnson posts hilarious photoshop to inspire voter turnout

Dwayne "The Rock" Johnson posted a photo cradling a child with Kevin Hart’s face photoshopped on it.

Jennifer Garner reminds followers that every vote counts

The actress posted a photo smiling with her voting sticker.

Reese Witherspoon asks who voted

The "Big Little Lies" star also shared a selfie with her voting sticker.

Zoe Saldana urges followers to share their owning voting videos

Zoe Saldana, who has been public in her support for Andrew Gillum, the Democratic nominee for Florida governor, posted on social media about why today is such a pivotal moment in history.

“We ALL have at least one reason to vote on November 6,” she said. “As a Latina, I know I have to vote. I’m voting because my vote is my voice. And you…? Why are you going to vote?”

She encouraged her followers to make their own videos to share what’s motivating them to vote.

Mariah Carey gets the word out in full glam

The singer reminded her followers to vote in an Instagram video.

"Everybody get out there and vote!” she said. “Vote, darlings! Don't be bleak."

Jeff Goldblum shows off his voting sticker

The actor shared a post showing off his voting sticker, attaching a quote from the fictional character, President Thomas J. Whitmore, in the 1996 film "Independence Day."

“Mankind -- that word should have new meaning for all of us today," he wrote. "We can't be consumed by our petty differences anymore. We will be united in our common interests..We're fighting for our right to live, to exist..‘We will not go quietly into the night! We will not vanish without a fight! We're going to live on! We're going to survive!’”

Amy Schumer heads into the rain to vote

The comedian, who has been extremely vocal about politics in recent weeks, shared a snap after visiting the polls.

Seth Myers brings his family to the polls

Late night host Seth Meyers shared a photo with his wife and son at the polls.

“Our son was disappointed because he thought we were going to 'boat' but otherwise a success! #Vote,” he captioned the post.

Mark Ruffalo: ‘#Vote for the wholeness of America’

Ruffalo posted a photo of an MTA voting notice on his Instagram platform.

"Today we get to #vote for the wholeness of America, the beautiful sum of our many different parts,” he wrote alongside the post. “We get to choose moving forward together and taking care of peoples health. We vote for an America for all us; every color, every creed, every gender and every way that people choose to express their love.”

“I’ll be posting in my highlights throughout the day for different volunteer opportunities you participate in to help push races in need #GOTV #IVoted,” he added.

Sophia Bush says she was singing down the street after voting

The actress shared that she voted early and attached a number of voter hotlines to help people that might need assistance with voting. “It was honestly so much fun. So poignant,” she wrote about her voting experience. ”I went skipping down the street singing afterward. No joke!”

She also attached a poem from poet Cleo Wade on the importance of voting.

Emmy Rossum proudly sports her voting attire

“Shameless” actor Emmy Rossum shared a post wearing a white sweatshirt emblazoned with the message, “I am a voter.”

On Monday, she shared a message on the social platform that read: "Vote. Vote like our life, our freedom, our future depends on it. Because it does."

Karlie Kloss shares note on gun violence on voting day

Karlie Kloss shared a photo of herself next to a New York City sidewalk featuring the word "vote."

She captioned her post, “96 Americans are killed by guns everyday. Bring your thoughts and prayers to the polls tomorrow #VOTE.”

Willie Nelson shares a photo after voting

The country music legend, who endorsed Texas Senate candidate Beto O’Rourke, shared a selfie on his Instagram with his voting sticker.

Chadwick Boseman looks to inspire look young voters

The "Black Panther" star addressed young voters in a video posted to his Instagram.

"I believe in you. I think you can turn our nation around," Boseman said. "You can make it live up to what it's supposed to do. It's not just that you're the future, you're actually the present, you're actually what we're supposed to be at this moment."

"Vote for whoever you want — vote for what you believe in — but I believe that the majority of you can see what's actually happening, and you want things to change,” he added.

Jim Carrey makes pointed statement on voting day

The actor tweeted a political drawing, attaching the caption, “Shameless lies. Endless indictments. The rise of racist hate groups. Kidnapped children. Contempt for rule of law - and quite possibly TREASON. Let's end this ill-wind that’s blowing America off-balance and turning us against each other.”

“VOTE DEMOCRAT!” he added.

Alec Baldwin looks to Lincoln

Actor Alec Baldwin shared a quote commonly attributed to Abraham Lincoln.

"America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves," the quote reads.

Drew Barrymore shares a funny snap

Drew Barrymore shared a selfie with her voting sticker.

Mindy Kaling shares her gratitude on Election Day

The actress captioned her voting snap: “Thank you 14th & 19th Amendment for letting me vote today!”

Jordan Peele tweets about voting

"Get Out" director Jordan Peele shared his voting sticker.

He captioned the post, “Argh.”

Shonda Rhimes wants to see her fans' voting pictures

The showrunner shared a post directing her fan base to “help someone else get out and vote!”

She also directed her followers on Twitter to send her their voting pics.

Nick Jonas shares a selfie

The singer showed off his voting sticker on Instagram.

Eva Longoria wants followers to make their voices heard

Longoria said she is voting because her vote is her voice.

"Let’s get to the polls and make history," she wrote alongside her post.

Kerry Washington wants to celebrate voter participation

The actress shared a video of little kids encouraging voter participation.

She also shared that she was incredibly inspired by voter turnout. “WE ARE THE PEOPLE. ALL OF US!” she captioned her post.

Ellen Pompeo smiles with her child after voting

Pompeo showed off her “voting squad” on social media.

Her daughter was also featured in a video on her account, saying “Vote.”

Salma Hayek says this is the most important time

“Nothing counts more than your vote. No time is more important than now. Last chance! Go vote!" she said.

John Stamos kisses his baby after voting

“We did, did you? #vote,” the star captioned his snap.

Adam Scott poses with his daughter in voting snap

Scott said he voted “with and for my daughter and her future.”

He also posted a snap with Busy Philipps, who he bumped into at the polls.

Viola Davis smiles with her voting sticker

The actress encouraged her fans to get to the polls.

Julianne Moore looks to Steinem to inspire fan base

Moore borrowed a quote from Gloria Steinem: “Voting isn’t the most we can do, it’s the least."

Beyoncé backs Beto O'Rourke

The singer voiced her support for Beto O'Rourke, the Democrat challenging Ted Cruz in the Texas Senate race. "I’m feeling grateful for everyone before me who fought so hard to give us all the right to have a voice. We can’t voice our frustrations and complain about what’s wrong without voting and exerc ising our power to make it right. We need you. We all need each other, because when we are truly united we are unstoppable," she captioned one of three posts. "Sending you all love and positivity on this happy voting day! Every vote counts. Every race matters. Everywhere."

Borat voted: 'Great success'

Actor Sacha Baron Cohen channeled his character Borat for a visit to the polls. "I voted, Great Success," he captioned his Instagram post. "#vote @jimmykimmellive"