Comedians Stephen Colbert and Jon Stewart perform at "The Rally to Restore Sanity and/or Fear" on the National Mall. Nice pants, Mr. Colbert!
The Audience View
The stage for the "Restore Sanity and/or Fear" rally.
Black Thought of the Roots performs. The Roots were the "house band" for the event.
Rooted in Sanity
John Legend, one of the 2010 honorees of The Root 100, performs with the Roots.
Rock On, Ozzy
Musicians Ozzy Osbourne (left) and Yusuf Islam (also known as Cat Stevens) perform at "The Rally to Restore Sanity and/or Fear."
A Trio Minus One
Sheryl Crow and Kid Rock perform a duet. T.I. was supposed to join them, but he is facing jail time and must report by Nov. 1.
The O'Jays perform.
Closing It Out
Mavis Staples leads "I'll Take You There" at the end of the rally.
Stop the Madness
An attendee hoists homemade signs during "The Rally to Restore Sanity and/or Fear."
At least he's honest?
A few participants dressed up for the occasion. Check out this saintly man for sanity.
Question of the year.
Signs sprinkled throughout the audience had choice words for a few people — and networks.
A woman dresses as a witch with a mask of Delaware Republican Senate nominee Christine O'Donnell.
Stephen Colbert as Hitler?
Tens of thousands of participants gather on the National Mall to watch musicians and comedians perform.
That Other Guy
An attendee holds up a poster of Glenn Beck, who held the Restoring Honor rally in August on the same day as the anniversary of Martin Luther King Jr.'s "I Have a Dream" speech.
Get on the (Huffington) Bus
Founder of the Huffington Post Arianna Huffington boards one of the HuffPost Sanity Buses going from New York City to Washington, D.C.