Meet Tonight's Superdelegates

Tonight’s "American Idol" will boast cameos from Miley Cyrus, Brad Pitt, and both the Manning and Jonas brothers—but the most anticipated appearances could be by Hillary Clinton, John McCain, and Barack Obama, the New York Post reports. The charity episode is exhibition-only (no candidate will actually score Paula Abdul’s vote), but there will be much pop-culture popularity at stake.

"Idol Gives Back" hopes to raise more than the $76 million the previous edition brought in, and the White House hopefuls are officially on the scene to help raise money for various charities. But they’re also bidding for a cool factor—witness McCain’s delight at receiving Heidi Montag’s support, Obama’s footwork on Ellen, and Clinton’s SNL cameo.  (More American Idol stories.)