Here's a 6-second video of Warren Buffett pressing a Yahoo button
Yahoo Finance will livestream this year's Berkshire Hathaway annual meeting.
In preparation for the event, Yahoo's Andy Serwer is out in the field meeting with Berkshire CEO Warren Buffett, and, among other things, got him to press a button that makes the famous "Yahoooooooo" yodel.
Here's the clip, via Kevin Chupka at Yahoo Finance.