The big presidential election takes place on Nov. 6. So it's no surprise that more and more celebs are putting their two cents in and publicly backing their favorite candidate. Who's Team Obama, and who's Team Romney? Keep clicking to see if you're voting for the same candidate as your favorite celebs.
Katy is using her voice to encourage people to vote for Obama -- her singing voice, that is. She's performed at a number of reelection events for the president, including 30 Days to Victory. After the Los Angeles concert-fundraiser, she tweeted "I sang for President @BarackObama last night because I believe in Equal Rights #ForAll #Vote."