Beyoncé & Jay-Z
The political power couple hosted a $40,000-per-person fundraiser at the 40/40 Club in NYC for Obama where they snapped this super cute photo of them with the POTUS.
Katy Perry
The pop star wears her vote on her sleeve (kinda) while performing at a campaign rally for President Barack Obama.
Clint Eastwood
Eastwooding, anyone? The acting legend garnered a lot of laughs after his now infamous Republican National Convention speech supporting Romney in which he spoke onstage to an invisible Barack Obama.
Miley Cyrus
The former Hannah Montana star took to Twitter to share a photo of her sporting an Obama shirt with the caption, "#ROCKTHEVOTE."
Ricky Martin
The Latin star joined First Lady Michelle Obama at a Grassroots event in Orlando supporting the president's reelection.
Donald Trump
The Apprentice bigshot has supported Romney and has questioned Obama's citizenship.
Eva Longoria
The pint-size political starlet and Latino rights advocate recently attended the Barack Obama Grassroots Rally and even spoke during the Democratic National Convention in Charlotte.
Lindsay Lohan
Although the embattled actress told us she was voting for Mitt Romney in October, she later took to Twitter to share that she's "proud" to support Obama.
Lady Gaga
The pop star called into Cleveland's Z 107.9 radio station to talk about the importance of voting, adding, "I will be voting for Obama."
George Clooney
The celeb Democrat is a pal of Obama's and even hosted a star-studded fundraiser for the prez back in May.
Stacey Dash
The Clueless star came under fire after tweeting, "Vote for Romney. The only choice for your future. @mittromney @teamromney #mittromney #VOTE #voteromney," along with a photo of herself mugging it up in a Baywatch-style bathing suit in front of an American flag.
Scarlett Johansson
The actress attended the DNC to support Obama and appeared in a video calling out Mitt Romney's stances on women's health issues alongside Eva Longoria and Kerry Washington.
Madonna
The Material Girl was booed by her more right-wing fans after endorsing Obama during a concert in New Orleans.
Sarah Jessica Parker
The Sex and the City star hosted a $40,000-per-plate fundraiser for the POTUS at the NYC home she shares with husband Matthew Broderick.
Connie Britton
The actress called out Romney for using a phrase from her show Friday Night Lights during his campaign and emphasized her thoughts that Obama's values aligned more accurately with the series'.
Will Ferrell
The comedian appeared in a video urging people to vote while throwing his support behind the president, telling viewers, "Vote Obama—it's a slam-dunk."
Nicki Minaj
While the colorful singer is not registered to vote, she rapped, "I'm a Republican voting for Mitt Romney, you lazy bitches is f--king up the economy" on Lil Wayne's Dedication 4 album.
Chris Rock
The funnyman's message to Caucasian voters? "Barack Obama is the white president you can trust!"
Jenna Jameson
The porn princess endorsed Romney this year, saying "I'm very looking forward to a Republican being back in office...when you're rich, you want a Republican in office."
Ne-Yo
The singer took part in the pro-Obama campaign video "Forward" with other celebrities.
Melissa Joan Hart
The Melissa & Joey actress tweeted her political views, writing, "Can't get too political in only 140 chac but for those asking, I'm voting #RomneyRyan."
Kal Penn
The Harold & Kumar star (and former White House staffer) was a big force at the Democratic National Convention.
Hank Williams Jr.
The controversial country croomer has compared Obama to Adolf Hitler and even said, "We've got a Muslim president who hates farming, hates the military, hates the U.S. and we hate him."
Samuel L. Jackson
The Star Wars actor starred in a hilarious pro-Obama video titled "Wake the F--k Up."