The big day for the United States of America is finally here. After all the campaigning and the debates, it's time for Americans to decide who they want as the next President of the United States. As the counting continues, Hollywood stars posted their tweets and photos as they cast their votes for the US elections.

Today, they're not big stars. Celebrities transforms into normal citizens of the United Sates as they line up and cast their votes in precincts in several states. Using their Twitter accounts, they also made last minute campaigning by endorsing their favored candidate and encouraging undecided voters.

Stars like Mariah Carey, Katy Perry, MIley Cyrus and Beyonce posted pictures about the elections on their Twitter and official websites. Beyonce who is a loyal supporter or Barack Obama even wrote an open letter for the President to express her "respect and adoration" for the democratic leader.

Other celebrities who were spotted casting their votes were Heidi Klum, Hilary Duff, Lenny Kravitz, January Jones, Sarah Jessica Parker, Ryan Phillippe, Jay leno, Katie Couric, Mandy Moore, Kathy Griffin and a lot more.

Other stars like Jennifer Lopez, Nicki Minaj, Lady Gaga, Ryan Seacrest, Selena Gomez, Kim Kardashian and Kim Kardashian posted tweets about the elections on their Twitter accounts.

As the ballots are being counted ad some precincts coming in to closing, it is still unclear who has the bigger shot in winning the election. Whether it be Obama or Romney, this year's election has certainly been star studded.

See more of the celebrity photos and tweets about the 2012 US Presidential elections.

Also read:

Top 10 Famous Celebrity Supporters of Barack Obama [PHOTOS]