Jessica Alba took a musical stand for Barack Obama today, with an appearance in Will.I.Am?s new video "We Are One". The just-released black-and-white pro-Obama project also features Ryan Philippe, Moulin Rouge actor John Leguizamo, singer Macy Gray, actor/rapper Tyrese, Ugly Betty?s Eric Mabius, Fantastic Four?s Kerry Washington, Everyone Hates Chris? Tichina Arnold, comedian George Lopez, Friday Night Lights? Adrienne Palicki and The Boondocks? Regina King. In it, mom-to-be Jessica, 26, who?s in her third trimester, says, ?I would like to see a cleaner Earth, for my child, who I?m bringing into the world very soon.? Similarly, Ryan says, ?I think it?s time to change. I want a better future for my children.? The video is based on the line Obama delivered after his victory in the February 6 Super Tuesday presidential primaries: ?We are the ones we've been waiting for, we are the change that we seek.? It follows on the heels of Will.I.Am?s first Obama video, based on the Democratic frontrunner?s ?Yes We Can? sp