Tonight, America will decide who will be their president for the next four years. It's either Barack Obama or newcomer Mitt Romney. And lots of celebrities have weighed in on the important day.
Without openly declaring who she's voting for, Lady Gaga tweeted: "So great to see everyone so involved today, going to say some political prayers and take a nap. #GodBlessAmerica"
She added: "If you're old enough to vote for the first time, exercise your right today! It matters & can change the world. Go vote: ofa.bo/Lookup"
And though Gaga hasn't endorsed Barack Obama (celebrities always tend to go for the Democrats, and she'll surely disagree with Mitt Romney's anti-gay marriage stance), he's still got a lot of famous sorts on his side.
Katy Perry, Beyonce and Jay Z have all shown their support for the president in different ways.
After singing at a rally in Milwaukee and wearing a dress depicting what an actual vote for Obama would look like, Katy tweeted a photo of her, her grandma and Obama: "May I exclusively present what might be the cutest photo ever taken: Me, Gma & POTUS [President Of The United States]! Happy voting!"
Beyonce also wrote a letter to POTUS (catchy name) and published it on her website: "Everyday we see your heart and character, inspiring all of us to give more of ourselves. You are the leader to take us from where we are to where we need to be.
"You are the reason my daughter and nephew will grow up knowing that they can truly be ANYTHING they want to be. "All my respect and adoration, Beyonce."
And Jay Z performed at a rally in Ohio, changing the lyrics of 99 Problems to "I got 99 problems but Mitt ain't one."
Ha! Let's see how POTUS does...