She's one of the biggest stars in the world, but in her music, equal rights activism and, now, politics, Katy Perry is a woman of the people. The "Teenage Dream" star covers this week's issue of Rolling Stone, and talks, among other things, her political awakening, saying that she's starting to understand just how big money runs the country. "It just feels like the thing running our country is a bank, money," she tells the magazine. "I think we are largely in desperate need of revolutionary change...