Billie Eilish, Kim Kardashian and Leonardo DiCaprio were among the famous faces who urged fans to vote in the mid-term elections.
US celebrities shared posts and pictures on the subject in an effort to encourage greater turnout.
Mid-term voting closed on Tuesday 8 November.
In a series of videos on her Instagram story, pop megastar Eilish reminded fans that “nothing changes without our votes.”
“Voting is a really important way to protect our rights or freedoms and our future … nothing changes without our votes,” he said.
The 20-year-old singer also reminded fans that if they started queuing before the polls closed, they could still vote and urged them to stay in line.
In an earlier video he had “fans promise to make a plan to vote” by saying that the stakes in the election “frighten me”.
Posting a photo of her “I voted” sticker and a cup of coffee, Sex And The City star Sarah Jessica Parker wrote, “Don’t forget to mail those ballot papers!
“Early voting is now open with very generous hours and always the kindest people working and helping.”
Reality star Kim Kardashian shared several links to poll opening times on her social media, including with reminders for people to stand in line at stations.
Hollywood heavyweight DiCaprio has released a selection of video interviews with voters explaining specific community issues and their reasons for voting.
“Voting is one of the most important civic duties we have, ensuring that the issues that impact us the most are first for the politicians who represent us,” he wrote.
“The impact the vote has on us is enormous, shaping the way our communities work in ways that are often overlooked.”
Other famous faces they posted online included singers Idina Menzel, Katy Perry, Lizzo and Selena Gomez, who wrote: “Your voice matters!” on her story on Instagram.
Frozen star Menzel posted a photo with a voting sticker on her forehead next to her husband Aaron Lohr.
“Voting together is so romantic!” she wrote.
Perry added: “I am voting for a myriad of reasons (read the news) but particularly because Los Angeles is a hot ATM.”
Before polls closed, actors Mark Ruffalo, Halle Berry and Viola Davis also urged fans to submit their ballots.
“Warriors of Democracy! Today is the day, ”Marvel star Ruffalo wrote in the caption of a Twitter video.
“Make sure your voice is heard and go to the polls to cast your vote. Remember that you have the power and we need you.
“Hello everyone … if you haven’t already voted, let your voice be HEARD tomorrow!” Berry said, while Davis called herself a “proud voter”.