First Lady Michelle Obama will pay another visit to Jay Leno on The Tonight Show on August 13, NBC announced today. It will be her third appearance on the NBC late night show. Mrs. Obama is expected to talk about leading the U.S. delegation for the 2012 Summer Olympic Games in London where she attended several events including a men’s basketball game, as well as life at the White House. She previously appeared on Tonight January 31, 2012 and October 27, 2008.