Okay, this guy is straight up crazy, but he looks like a lot of fun.
First Lady Michelle Obama greets Let's Move event participants in the Diplomatic Reception Room, Oct. 11, 2011, prior to launching a challenge on the White House South Lawn to help break the Guinness Book of World Records title for the most people doing jumping jacks in a 24-hour period. Participants include: John Cassidy, Guinness Book of World Records holder, who performs a balloon act.