FILE - In this Jan. 31, 2012 file image originally released by NBC shows first lady Michelle Obama speaking with host Jay Leno during an appearance on "The Tonight Show with Jay Leno,"

 

              FILE - In this Jan. 31, 2012 file image originally released by NBC shows first lady Michelle Obama speaking with host Jay Leno during an appearance on "The Tonight Show with Jay Leno,"
FILE - In this Jan. 31, 2012 file image originally released by NBC shows first lady Michelle Obama speaking with host Jay Leno during an appearance on "The Tonight Show with Jay Leno," in Burbank, Calif. NBC announced Monday, Aug. 6, that the first lady will make her third appearance on "The Tonight Show" on Aug. 13 to talk about the London Olympics and life with President Barack Obama and their children at the White House. On her last stopover in January, the first lady promoted her "Let's Move!" campaign to get kids excited about fitness and healthy eating habits. (AP Photo/NBC, Stacie McChesney, file)