Michelle Obama, Cleveland Cavaliers Mannequin Challenge

FLOTUS Michelle Obama, Lebron James and Cleveland Cavaliers White House Mannequin Challenge. Mannequin Challenge: Michelle Obama Mannequin Challenge Lebron James Mannequin Challenge Cleveland Cavaliers Mannequin Challenge White House Mannequin Challenge SUBSCRIBE to ABC NEWS: Watch More on LIKE ABC News on FACEBOOK FOLLOW ABC News on TWITTER: GOOD MORNING AMERICA’S HOMEPAGE: .