Musicians on the trail

Published 2:50 PM ET, Thu October 25, 2012
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Katy Perry performed Wednesday at a rally for President Obama in Las Vegas wearing a white rubber dress printed with the image of a presidential ballot.
Here's a closer look at the ballot. Obama's name was checked off, suitable since Perry was performing at an Obama rally.
Later Perry changed into a business suit. Very political.
She sang into a microphone styled like Lady Liberty's torch.
Perry's not the only musician on the trail. Kid Rock performed at a Romney rally earlier this week.
Bruce Springsteen and Bill Clinton teamed up for an Obama rally in Ohio in mid-October.
Lee Greenwood is a Romney supporter, and performed at a Romney rally last week.
Trace Adkins has been on the trail for Romney.