If you haven't watched these yet, watch 'em.  They are videos using soundbites from Obama speeches, by will.i.am (from the Black Eyed Peas). 

I think the 2nd one is my favorite, musically speaking.   If you only have time to watch one of them, I say watch "We Are the Ones"... 

What do you think?

Yes We Can
www.yeswecansong.com
Plus after the song is over, wait for a bit... there are statements by the people in the video speaking about Obama and this election in their own words...

We Are the Ones
www.dipdive.com/dip-politics/wato/
(we are the ones we've been waiting for)
There's bonus footage after this video too.